Now I feel myself like a masochist, because I was not using power tools, while I could. And I didn't use them because I thought that they are bad or not fitting myself.
After setting them up a bit, I can tell you - I was wrong. Gnome is great again (as found out, it was Dash2Dock killing it's performance, and now it feels great using it). No lags, no issues at all.
Smooth and great experience.
Fuck the negativity! 😄