Always a good move. Doesn't matter the software, there will always be some time when a "routine update" turns into a forum hunt and troubleshoot mission.
That being said, snapshots are amazing. The BTRFS file system supports them, and TimeShift also integrates with it.
If you don't want to bother with another file system though (it requires basically a reinstall if you didn't choose it at first), at least get TimeShift and another large drive or partition to save restore points to! It'll basically just copy backups of all the files instead of lighter snapshots, but being able to roll back after a funky update is lovely.
But either way, don't sweat all that too much, just make sure your essential data is on
3 copies. 2 different media. 1 offsite.
KDE connect is such an under appreciated killer app it's not even funny.
When I go to house sit for a friend I just hook my laptop to their HDMI, pull out KDE Connect, and bam I'm kicking back 10 feet away watching my streaming stuff on my system with adblock running and everything, and the media controls just work.
I'm strongly considering using a Pi 3b+ as a TV machine where KDE Connect is the primary interface. It just works so well.
I also love getting text alerts or low battery notifications on my desktop without having to keep looking at my phone. It's just amazing.