We have been working on several memory leak fixes recently. One of the main ones was fixed with Standalone version 19.086.0502.0008 and Store version 19.103.0527.0003. If you are not on one of those builds or higher, please update first. If you are still experiencing issues after updating, let us know. We will continue to focus on performance improvements, including memory utilization.gregi supported this idea ·gregi commented
Running 19.152.0801.0007 (Standalone) on macOS 10.14.6. OneDrive Finder Integration was using over 7GB of system RAM. Even at idle (not syncing files), I currently see two instances of the process using a total of 2GB of RAM. So evidently, the recent (August 2019) memory leak fixes did not really fix the problem.