It's also highly manual (at least for local backups). One can only set up backups for six months at a time, plus downloading the files involves waiting for an email notification and using download links in that email.
If anyone has figured out a way to automate all this, I'd _love_ to hear about it.
I back up my gdrive to a synology, which is in turn backed up to rsync.net. The notifications get fed into checkcentral. This arrangement is pretty capable and I feel good about it.
I've been thinking of going full archivist and burning all the family photos onto blurays though.
I have a full sync of my cloud storage on my media PC, which rsync's nightly to an external drive. I have another external drive that lives at work, which I bring home and sync every month or so. In theory I think that covers most scenarios I care about (cloud provider failure, HDD failure, house fire etc).
It has been a long time since I used Drive, so I can't remember if has a Dropbox-like desktop sync app, so this may not apply.
I have it mirror deletes. I'm comfortable enough with this because my cloud storage provider has version history and deleted file restoration, plus my air-gapped month-old backup gives me some time to notice any accidental deletes.
I used to have it not mirror deletes, but then if you ever have to do a full restore it's a bit of a mess.