Just got a new phone (OnePlus Nord 3), turned refresh rate HUD in developer settings and I see some parts of the system and some apps display 120 Hz but I have problem noticing any difference, same with my wife’s Redmi Note 12, i have to look very carefully and maaaybe I notice some different, not sure
Have you tried going back to the 30 Hz one?
When comparing side by side it’s obvious but on daily use I don’t notice it granted I don’t play games or anything.