Updated Sep 16, 2022: We confirmed that VRR doesn't work properly when sent a 120Hz signal from a PC.Uns bugs no VRR/Gsync. Do nada ele "quebra" e fica uns stutters ferrado.
Unfortunately, when connected to a PC, VRR doesn't work if you have the refresh rate set to 120Hz. There's no tearing at all from a PC, suggesting that it's using V-SYNC instead of VRR, and the connection at 120Hz is very unstable. These issues don't occur when the refresh rate is set to 100Hz or 144Hz, or when connected to a console running at 120Hz.
Tô achando que a Samsung não vai corrigir isso, já faz um tempo, tava olhando no rtings.