Hi birdscare,
I have several suggestions in mind:
Uninstall the current version of OneDrive, and install the older version that support macOS Catalina.
Uninstall Adobe Creative Cloud using official uninstaller and reinstall it.
Frequent crashes could related to poor/corrupted system management data. I suggest to Reset the SMC.
There might be filesystem error causing the crash. I suggest to Run Disc Utility to check and repair disk errors.
There are conflicting background services/apps. Removing unnecessary ones might help.
I may could continue giving another, but let me know whether those help you.
Topic:
Community
SubTopic:
Apple Developers