You can sort of tell by the whole 4k (or even 8k), 144Hz stuff that opportunities for real improvements have been running out for a while.
Which is why they were ignored for a decade or two despite game engines easily achieving those FPS numbers and were pulled out exactly when the hardware vendors ran out of any other arguments to convince people to replace their existing screens and GPUs?
Maybe you’re only seeing the marketing now, probably because the customer base that would care about it are finally in large enough numbers due to the business around eSports, but higher frame rates give you better response times, and we’ve known this for a very long time. In my world, in fighting games, the games only draw at 60 FPS usually, but they can run at a 120 Hz or 144 Hz mode so that they can poll for inputs more frequently, which makes the games feel better to play. Resolution ought to have a tangible impact in FPS games as well.