DeGoogle Yourself

Photos auto upload to Ente Photos. I periodically manually back it up locally to my desktop and an external hard drive. I cut and paste directly from my phone to free storage and so I don't have to scroll through Ente to see where I left off last backup.

General file storage like documents I use Tresorit. Mostly because it has a Linux app, otherwise I'd probably go Proton Drive. Proton Drive I use solely for game saves and whatever other random stuff I use on my Windows partition, which is not much. Similar to photos, I have a local backup on my external hard drive for important files.

I don't back up my actual phone. I did make an app list in Notesnook, but by the time I get a new phone I tend to use the opportunity to downsize anyway. And to throw surveillance capitalism off my trail in case I made a few mistakes in not being careful over the period of owning the phone.

syncthing, simple and easy

If you're not ready to go full self-hosted Immich then Ente Photos seems like a good replacement for Google Photos

I have two external hdd drives for backup

What do you mean by "phone backups"?

• Contacts? Synced to my Nextcloud instance via CardDAV.
• Calendar? As above, CalDAV.
• Browser bookmarks? Floccus > to Sync to Nextcloud.
• Apps? Don't care, just reinstall.
• Photos? Immich.
• Other Files? Nextcloud, Syncthing, or good, old-fashioned USB transfer.

rsync to my laptop, which is periodically imaged to a couple of external disks, one of which sits under a fake plant at work when not actively used.

On Debian, I install android-file-transfer, mount my phone manually with aft-mtp-mount /mnt/android, then run rsync -a --progress '/mnt/android/Internal Shared Storage' '/path/to/backup'

If the Android folder is too much trouble, you can also run rsync -a --progress --exclude 'Android/' '/mnt/android/Internal Shared Storage' '/path/to/backup'

A NAS in my house and backed up to a NAS at a family member's house

Proton Drive does automatic photo backup.
As far as phone backup. I just always start fresh with each new phone anyway.
It's nice to hit the reset button every few years.

I self-host Immich for photo storage on my own server. All photos from my phone are automatically backed up there.

The immich server is backed up daily using restic, and those backups are stored in a Hetzner storage box. This way I have a local photo server plus an encrypted off-site backup in case something happens to the server.