For me, anything 25 FPS or higher is 100% fine and I’ll be enjoying my time. I never play competitive online shooter games ever, though. All single player ones like GOW and the likes. I game on a 60 Hz 4k monitor. GPU is AMD RX 6600 alongside Ryzen 7 5700G and 32GB RAM. My games are set to meduim most of the time at 4k. Demanding titles are on low. Surprisingly, GOW and GOW Ragnarok are both set to ultra and I still get around 40ish FPS.
I play a ton of simulation and strategy games (and some that I would hazard to classify as virtual railfanning/model railroading, like Railroads Online and Transport Fever 2) so I crank up the prettiness, download as much custom content as will load and enjoy the scenery at 20-40 FPS