IceDrive lost thousands of my files without any notification. Their support escalated my ticket, then ghosted me for 2 weeks before closing it. I’m sharing a script to check if your files are actually backed up: https://github.com/rupumped/NicksAPPS/blob/main/Python/IceDriveVerification.py. Note that it requires argparse.
Usage: python IceDriveVerification.py C:\Documents C:\Photos C:\Projects --backup-root I:\
Even if you backup locally there can still be bugs or misconfiguration that causes data loss, just gotta test the backups.