Allow Webdav access
The promise is not really true:
"Any device, at any time
[...] it works well on all your devices."
Currently OneDrive does not work well on any of my devices.
Webdav is a well supported protocol on nearly every internet attached device for file access over http(s). As stable apps are not available on all platforms please allow Webdav (or some other useful API) access so that users can access their files quickly and conveniently.
WebDAV used to work in 2014. Now, you can see a list of folders, and that's about it. Virtually every other activity has been cut off by Microsoft, and I am positive it is to keep people like myself from using it as a 'Backup Only' solution...