As far as I remember adaway is the og adblock for android, it is available on f-droid and pretty much the only app that I used since ever, and one of the few reasons I still won't let go of rooted phones, https://adaway.org/
On top of that I would recommend you to run your own DNS server with unbound, add to that pi-hole and wireguard and you have your own pi-hole set-up on any device you want.: https://docs.pi-hole.net/guides/vpn/wireguard/overview/
Well having a dedicated
/home
partition is the very minimum and pretty much default.If you are interested in having a backup/restore solution for your system you are looking for
BTRFS
which uses sub volumes instead of primary partitions and is compatible with snapshot tools, those tools being Timeshift and Snapper.I do think Snapper is the superior solution however it's also more complex to set up and requires significantly more prep work. Imo totally worth it.
I currently use it on my main machine Debian with BTRFS and Snapper and couldn't be happier.