Looking forward to giving VRR a shot again. Last time I tried a couple years ago was pretty underwhelming on a couple different machines. Some games worked well with it, but a lot of software felt subtly broken. A lot of weird micro-stuttering and stuff just not feeling smooth even when the average framerate was high compared to boring synced 144 hz.
In video, common frame rates are 30, 29.97, 24, and 23.976. (Almost) anything else will be a multiple of those. Your monitor might not actually run at 30hz * 4, it runs at 29.97hz * 4 which is why you see an option like 119.88. Sometimes that’s displayed as 120 to the user for simplicity, but in this case they’re showing the actual value (or it might support both).
@FrankTheHealer@KarnaSubarna Setting displays to run at 144Hz has worked for ages. VRR is a different feature, where the display's refresh rate syncs to the framerate being pushed to it by your OS. Most environments have supported that for ages too, but some things haven't. Mutter moving to support it is a big step toward it being universally available.