Google's Suggested GBP Updates Nuke Reviews
Make sure you know your GBP CID numbers and have backups of your reviews; you'll need them sooner or later.
Google automatically (and annoyingly) pushes updates to Google Business Profile (GBP) listings and then forces listings managers to manually reject the changes. It's often unclear where these changes come from; they're often wrong. This becomes increasingly problematic the more listings you have; the current dashboard for rejecting them doesn't work at scale.
But recently it has become significantly more problematic.