Sure, some detox can be good. Take off when you need.
Yes, Knockout has places for politics but they’re pretty good in keeping it in their place. I find it rather easy to dodge it. The discussions there seem rather peaceful. I like to go there when I have enough of the usual hostility and argument-winning mindsets you’d find on the “regular” internet like Reddit, Youtube, sometimes even Lemmy etc.
I think one could build a mobile phone themselves but it would probably come out very big