> - does Linux works well (e.g. no intel 12th gen integrated graphic tearing problems or similar), sleep power saving not being grate doesn't matter

Probably not. AMD laptops have struggled in the past. Even Intel Alder Lake works better with 6.2, but I still have issues where it does not resume properly months after release, which was months after Intel released Alder Lake mobile. When I lift the laptop lid, it stays suspended for a few minutes until it wakes up or I need to close the lid and reopen it. Had similar resume and suspend issues with my Skylake System76 Lemur. Feels like it takes years for Intel to resolve issues with their laptops on Linux.

Works better than it used to. Better than when GNOME Settings would crash the system to freeze-haven't had that issue in over a month.