backup – How can I back up the Photos I have in Google Photos?

I have all my photos—going back more than a decade—in Google Photos. However recently another article about someone who had their Google account wiped for no reason, and with no course for reinstatement got me spooked. I’d like to continue using Google Photos, as it’s a great product, but only if I can enable backups to something (anything) other than Google itself.

This wasn’t a problem until 2019, when Drive sync stopped, as that could be used (with the Backup & Sync tool) to replicate the data via my local machine.

However now it seems like the data is totally trapped within Google Photos, and the only way I can get access to anything is either individually via the web UI or via takeout. Is this really the case? Am I missing something?