Testing goes stabler and stabler with time. Then testing move to release and the previous untesting (sid) move to testing. It’s a that moment that you can have surprise. This is the moment where I often wait one month or two, apply the updates and check my os is working as before, meaning running my day to day applications and game and see if things work. The only problem I had once was shader cache. I removed few things in .cache and I was good.
When I see such hardware, I directly go to see if it provides its sources. It does: https://github.com/ROCKNIX/distribution
Just a reminder that those funky hardwares are full of open source software builds (often emulators) and often does not follow the GPL licence licence and providing source code back. Things are moving in the good direction but I thinks its important for us, as user, to complain about GPL licence, specifically for such hardware that often needs updates.
This one seems pretty serious.