Not just Docs, it's Google Drive that I find hard to replace (Docs, Sheets, Draw, Slide, etc). The recent debacle with Legacy GSuite motivated me to pay for a Microsoft 365 account, and create a sync of my Google Drive to OneDrive, converting the proprietary Google format into Office format. Then I do a 3-2-1 backup of the OneDrive files. (Backing up the local Google Drive folder is no good, because all you get is a stub of the Google proprietary files.)

Then I moved most of my other Google services (e.g. Domains, Gmail, Calendar, Search, Chrome) off to other companies and products (e.g. Cloudflare, Fastmail, DDG, Firefox). I figure that every interaction with Google proportionally increases the probability that my account will be terminated. So I moved off Google to protect my Google Drive, which seems ironic.

The last Google service that I need to move off is Google Voice. I haven't done a lot of research on this yet. If anyone knows of a good alternative that provides SMS-to-email forwarding, I'd be interested.