It’s…kind of a nonthing burger to limit fps as i have also tried it extensively on a 165hz monitor.
If you are getting about 90-100 fps then just playing without it will give you a better experience because the latency is lower, at least for me it’s very noticable.If you are around 60-70 fps then it does offer value but you don’t really have to cap fps as you should always stay within the monitor range and VRR also works. Games with framepacing problems or microstutters are a no-no, in those cases AFMF will only make the stutters more apparent.
The way i see it AFMF truly is great if you have a 240hz monitor and your PC can ouput 100 fps average on a game. Then you use frame generation to make the game extremely smooth at over 200 fps without having to put up with latency, if the base framerate is high enough then the latency hit is abysmal.
I’d also recommend Arctic Liquid Freezer II, 280 or 360. It’s one of the best performers while being cheap for an AIO. Although that radiator is big and needs a big case.