Normally the higher the fps the better.
But consider the limitation of hardware, cost, and the consideration of game type, its not a black and white scenario.
Normally for PC gaming, 1440p with high refresh rate is the most economic way of experience video game with our current technology. In this resolution not only we enjoy higher frame rate, but with also the benefit of Ray tracing (with DLSS or FSR) and high frame rate.
But there are certain type of game that I'd rather prefer 30 fps even if I have the option to set it higher, for example Detroit Become Human is the perfect example here. The game was designed specifically for 30 fps cinematic experience (which the game defaulted to 30 fps, you have to do extra tweaking to be able to unlock the fps limit, on PC of course). When I unlock the fps, the game looked like Soap Opera, I felt much better with its default setting. I guess there is still a case to be argued here that 30 fps is more like an artistic choice for cinematic video game, just like how pixel art is now an art form instead of hardware limitation (If you time travel back to the 90s and claim pixel art is an art form, people will laugh at you and claim its an excuse for outdated hardware). So if the game was to set at 30 fps, with the extra power why not play it at better resolution let say 4k?
That said, there also exist games that required to have higher frame rate for example multiplayer competitive games. For these type of game I would rather play at 1080p but with 240hz if possible, visual quality and effect is not important in this case, input lag is a game changer here.
And there are also games that are in the middle ground, for example Souls games, although they are not multiplayer game, but the game design itself are challenging for single player experience, for these game I would make a balance between frame rate and visual quality. For this case I'll use Demon Souls for PS5 as an example, even the most die hard 30 fps supporter would prefer to play at 60 fps in this game, which I would say 60 fps mode is mandatory.
My point here is: What are the best resolution and frame rate combination depend on the game type.
It would be silly to play Detroit Become Human with 1080p 240hz Low, or COD with 4K 30hz Ultra High