Hmmm that's some insight I must say bro..
DTH don't have that.. removed after new weird TRAI rules.
Mostly OTT & Games (Netflix, Amazon-prime, Hotstar and Sony LIV for Sports, sometime zee5, viki rakutan well for u know korean and Chinese drama for (Bully's).
than my gaming time cod if good team 4 hrs max.. than some solo games like Ghost of tsushima, God of war and other which will release in coming months)
Hour wise I'd say 250 - 300 hr a month.( Thts combine ott and gaming hrs)
You'll fine then. Most games have the option to remove HUDs too nowadays. I don't bother for single players, but the game that I will probably play the most in the next 5 years is Rocket League, and for that I have changed the graphic settings to not be highly dangerous for OLED. Even then, I guess I'll end up playing that game for 1,000 hour max in 5 years. Totally under the hours that'll cause permanent burn-in.
Go for OLED. You'll be fine. Turn subtitles to grey or semi-transparent. The TV will probably fail in some other manner before burn-in happens on these newer sets. In my family, no TV, including Sony and Panasonic ones, have lasted more than 4 years. lol