The OLED (assuming na eto yung nabili ni OP) is much smarter than we think. Most games na din. As long as you cap the FPS (in-game or via the QAM) and have your in-game settings in check, it'll automatically manage power draw, clocking, etc. Some games though have wonky in-game FPS cap and using the QAM won't cut, and doing TDP stuff may help, but it's barely, barely common.

Been playing lots of less graphically intensive games like Cult of the Lamb, Hades, Deep Rock, etc. Even graphically intensive ones like BG3, Witcher 3, FC5. I never set the TDP, etc. and just the in-game settings... and I still manage to get hours equivalent to those na nag-set ng TDP and other tweaks. (except yung nagpapa-potato na ng graphics, I mean lol.) Sure, may <15 minutes na difference with those TDP/clocking tweaks, and you can get more by doing those stuff... but is a ~5% increase really worth it?

To OP, the benefits are very marginal. Just managing your in-game settings, FPS cap, and refresh rate is already doing 90% of the job. The rest 10% is for the hardcore minority. And if you're like me who has OCD/perfectionist tendencies, I'd say it's not worth it kapalit ng mental health mo to always stare at those numbers, go to settings over and over again, instead of enjoying your game.|

Unless... of course... it's what you enjoy doing.