How do you back up your pictures or files from your phone? Run your own server?
Discussion
I manually move them to my computer and then rsync to an SD card, but I actually don't keep many media files.
For cloud storage ProtonDrive is a fine option I think.
There's also Nextcloud if you want to try self-hosting
This is why I bought 256Gb. I just keep everything on my phone and move it to my local storage on my PC when I get a new phone. Usually every 2-3 years.