My dad's Linux setup couldn't log in. After a bit of investigation, starting the session manually and so on, i got a hunch and indeed; i saw in Baobab that the backup script took the wrong disk, filled up the one with home, making it slow, so the log-in thingie timed out, failing the session.
Clean all the cache downloads of Arch Linux Packages
pacman -Scc
Remove unused docker networks and images
docker system prune --all
Cleanup untracked git files that might be in .gitignore such as build and out directories (beware of losing data, use "n" instead of "f" for a dry run)
git clean -xdf
Do an aggresive pruning of objects in git (MIGHT BE VERY SLOW)
I'm here to promote fclones. I've used it twice and recovered over a terabyte on my NAS the last time I used it. I'm not affiliated. Hyperspace for Mac is similar (but different) and I haven't used it, but it was developed by my favorite nerd podcast host. I'm planning to test it out eventually, but the latest fclones run was only about a month ago, so it doesn't make sense to try it yet.