having many tabs is perfectly fine - it's having many *youtube* tabs is troublesome

main trouble to me has been caused by unity games - those are the big ram devourers, even most basic 2D ones (I still don't understand how that happens, why such regression since KSP days)

and plenty of 2D games work perfectly fine (devs really overestimate minimal requirements)

> main trouble to me has been caused by unity games

Generally it's probably just bad optimization. But that only gets you so far because Unity's asset streaming is designed to work with level-based games. It will only let you unload assets if you package them per-level and then swap them in and out at load screens between levels. Absolutely useless for games like KSP.