Curious about both android and iOS because I want to know what to recommend to friends. I'm asking about Google Drive because that's what is simplest for my peers right now.

With Facebook adding AI directly into messenger, I have some people wanting to switch to Signal. However I'm not confident in my process for backups.

Right now I'm using FolderSync which is working well. The problem is deletion, where the deleted file sticks around in the trash for 30 days, eating up storage space until I manually delete it. Since the Signal backups can get quite large, the trashed backups are enough to put me over the limit.

I didn't try WhatsApp that long, but it had a built-in feature to backup to Google Drive. I don't need that level of simplicity, but something close would be nice.