Display refresh rate problem was noticed since I bought this mobile phone nothing phone 2a. What we do on the phone is not just scrolling, In that we have to do multimedia experience. What I mean is that when I put refresh rate high mode or dynamic mode on YouTube or Android video players like vlc in full screen, 120hz changes to 60hz. I have been feedbacking this report for a long time and still correcting what they say. The latest update doesn’t seem to fix it either
Phone (2a) - certain apps have low refresh rate
1 post was split from Adaptive Refresh Rate (Phone 2a).
I am too having this issue 
6 months later
I’m having this issue too
RainMariyous Yeah, same, I have reported the issue, but nothing team haven’t fixed it.