50 inch vs 55+ - Difference screen, processor etc.

Got a good offer on a 50 inch 2023 and the size suits me, I don't play games and usually only movies are mirrored from the macbook.

I know that one difference from the models with a larger screen is that they are 120 hz while 50 inches and smaller are 60 hz, dosent bother me at all but are there any other differences?

Dealbreakers would be if the screens with 50 inch or smaller has a worse processor or most importantly dosent support airplay 2. as the larger models do. Please give me some info if u own the smaller models of the frame 2022/2023.