Copied wholesale from another link as it appears to be archived:
https://onedrive.uservoice.com/forums/262982-onedrive-archive/suggestions/15445719-share-links-dangerously-default-to-view-and-edit

File sharing currently defaults to creating a link with both view AND edit permissions. This link is retained, without any indication to the user, even when the user deselects the allow edit permissions box.

This is a VERY dangerous security flaw because some search engines are capable of discovering these links by brute force. I had one of my excel files completely *nuked* by an anonymous rando that had found the view+edit link that I never knew had been created (even though I only ever explicitly shared a view-only link for the file). They nuked the file by reverting it back to the very first version of it that I had uploaded, and there was no way for me to be able to un-revert it. It was only my habit of keeping offline copies of *everything* that I was able to replace the file.

This needs to be fixed ASAP. Onedrive.com should NEVER default to view+edit like this if it is going to invisibly retain the links without the user being immediately aware of it. This is a MAJOR security flaw.

*English follows Japanese
■Title(件名)：
15 GB 以上のファイルをアップロードできるようにしてほしい

Enable uploading over 15GB size files to OneDrive for Business
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■Description(内容):
OneDrive for Business に 15 GB 以上のファイルもアップロードできるようにしてほしい
(背景)
・1ファイル15 GB以上ある大容量の動画ファイルを クラウド上にアップロードしたい。
・現在、クラウドへのアップロードの上限が 最大 15 GBとなっているが、動画データの特性上、圧縮を行っても 15 GB 未満へ容量を低減させることが難しい。
・1 カットで撮影された動画などの場合、分割し、小分けにしてアップロードすることが現実的ではない。
・他の編集ファイルや関連ファイルとのリンクやデータの整合性を保つため、アップロードのために動画データに手を加えることは好ましくない。

We would like to have the ability to upload over 15 GB size files to OneDrive for Business.

<Background>
-We would like to upload large video files over 15 GB to the cloud.
-Currently uploading limit to the cloud is set to 15 GB. However, it is hard to reduce each video file’s size less than 15 GB even though we compress those files.
-It might be difficult to split a 1-cut-filmed video into some small sized files to upload.
-In order to keep the links to other edited files/related files, and data integrity, we do not want to resize the video files just to upload them.

Thank you for your continued support.

*English follows Japanese

■Title(件名)：
Outlook on the Web 側でユーザーが登録した外部の連絡先情報が、OneDrive for Business 上に表示される。
Allow us to control share candidates at OneDrive for Business.

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■Description(内容):
Outlook on the Web 側で各ユーザーが登録した連絡先の情報が、OneDrive for Business でアイテムの共有を行う際に検索候補に表示される。
Graph API の API コール処理による検索で、OneDrive for Business 側に Outlook on the Web 側で登録した情報が表示されていることを確認したが、OneDrive for Business の検索結果に Outlook on the Web 側のユーザー情報を表示させたくないため、本機能をオフに設定できるように機能の実装をお願いします。

If a user adds contacts from Outlook on the Web, those contacts are shown as a share candidate on OneDrive for Business.

I understand API call processing by Graph API for the search shows those contacts information on OneDrive for Business.

However, I would like to hide contacts which are registered via Outlook on the Web so that please allow us to control share candidates at other applications.

Thank you for your consideration.

*English follows Japanese
■Title(件名)：
Multi-Geo機能にて JPN から EUR に変更したユーザーの OneDrive for Business で、コンテンツ検索の検索結果プレビューが行えない。

Expand the feature of Multi-GEO
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■Description(内容):
Multi-Geo機能にて JPN から EUR に変更したユーザーの OneDrive for Business に対してコンテンツ検索を行い、検索結果プレビューを行おうとしたが、エラーが表示され行えない。
調査の結果、Exchange Online のテナントが日本のデータセンターに存在する場合、今回の操作は現在サポートされていないと確認した。
Exchange Online のテナントが日本のデータセンターに存在する場合でも、検索結果プレビューが行えるように機能の追加をしてほしい。

We would like to inform you about the problem we are facing after we have changed the region of OneDrive for Business contents from JPN to EUR by using Multi-GEO. We are now receiving an error when attempting contents search to OneDrive for Business, and the search result preview cannot be displayed.

As we investigated this problem, we found out that the action we were trying to perform is not supported yet in case our Exchange Online tenant is located in Data center in Japan.

For users who have Exchange Online tenants in Japan, please provide the functionality to let us perform content search preview as well.

Thank you for your consideration.

*English follows Japanese
■Title(件名)：
ドメイン管理を行っていない環境で、特定の端末のみ同期を許可する機能の実装について。

Provide the feature that allows syncing only on specific PCs without joining those PCs to specific domains
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■Description(内容):
一部の PC 端末のみ、同期を許可する設定を行う場合、OneDrive 管理センター内の [同期] から、 "指定のドメインに参加している PC 上でのみ同期を許可する" にて、ドメインに参加した PC のみ、同期を許可することが可能。
ドメイン管理が行えない環境にて、同様に特定の端末の同期を許可したいが、現時点では機能がないことを確認。
そのため、ドメイン管理が行えない環境でも、特定の端末のみ同期を許可し、他の端末は同期が行えないよう制御できる機能の実装をお願いいたします。

To make sure that users sync OneDrive files only on some specific PCs, you can configurate OneDrive to sync only on PCs that are joined to the specific domains by selecting “Allow syncing only on computers joined to specific domains” options from [Sync] in OneDrive Admin center.

We would like to allow only specific PCs to sync in case we are not able to manage PCs by domain, however, we confirmed that there is no such option available at present.

Therefore, we hope you to implement the feature that allows syncing only on specific computers even when we cannot join those PCs to specific domains.

Thank you for your consideration.

*English follows Japanese

■Title(件名)：
OneDrive for Business の同期クライアント利用時に Excel ファイルを読み取り専用に固定する機能の実装希望
Allow us to fix Excel files as “read only” when using sync client of OneDrive for Business

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■Description(内容):
現時点での動作では OneDrive for Business の同期クライアント利用時に Excel ファイルを完全に読み取り専用にすることが出来ない。チェックアウトを行うことで読み取り専用とすることが可能だが、頻繁に編集を行うファイルの場合は、工数が多くかかり運用に適していない。以前は読み取り専用での利用ができていたため、読み取り専用に固定し利用ができるよう機能拡充を希望します。

When we use sync client of OneDrive for Business, not all the Excel files will be “read only”.

Check out feature is able to make files as read only, but it takes a lot of time and increased workload to use this feature for the file we use frequently.

Formerly files became “read only” when multiple users open the one file, so we would like to see same behavior for current Excel files to prevent files being edit by multiple users.

Thank you for your consideration.

Path length limit in OneDrive (business) in filesystem does not match the limits in Office in collaboration mode

When working on OneDrive for business in Office (Word in the example), you sometimes cannot save a file right next to an existing file, using the same number of characters (when path length is long). The reason seems to be that is that path length check does not take URL expansions into account (spaces in path becomes %20 and then count as three chars).

See examples here: https://answers.microsoft.com/en-us/msoffice/forum/msoffice_word-mso_win10-mso_o365b/use-onedrive-for-business-as-ordinary-filesystem/e5ca4e00-eec8-4a60-9cef-37e82be5fe46

I ended up disabling collaboration features, forcing Word to use Windows file API instead of the sharepoint web API, but that shouldn't be necessary.

I know this is actually an error report, but in lack of an error reporting system, it is posted here as proposed by MS in the above linked thread.