Not long ago I watched the fdroid app itself enshittify.
I was testing an update of another app, saw it didn't really work yet, went to roll it back, and the downgrade button was gone. So I tracked down why and found fdroid had removed it. So I went to downgrade the fdroid app and the downgrade button was gone ...
Had to hunt the bare apk and downgrade manually.
I'm still on the old fdroid version procrastinating looking for an alternative.