Install wireguard kernel which allows concurrent tunnels (you can connect to multiple VPNs at once, e.g. your home VPN and mullvad).

AuroraStore and fdroid root installers.

Mount an NFS filesystem with your self hosted cloud storage (yes I know there's built-in userspace support for SMB but I prefer NFS).

A bunch of other cool stuff. Freedom and control in general. I don't like the feeling of being locked out of a device I should own.