Actually, that's all completely wrong.
Overclocking Ryzen is practically non-existent because there is no headroom for it. They are already pushing the boundaries of what the silicon is capable of in most cases. In some cases you might be able to push up the all core boost a little bit, and there is some variance depending on model, but mostly the precision boost already takes these as far as most people would easily be able to take them anyhow. So overclocking on Ryzen is not common, popular or necessary.
Secondly, mhz has ZERO to do with it. Trying to compare processors based on Mhz is a fool's game that ended back in the mid to late 2000's, if not earlier, because trying to compare Mhz does not factor in the far more important aspects of IPC/Instructions PER clock/cycle or other factors such as specific cache packages, what instruction sets a given CPU is able to use or many other factors including the number of cores and threads.
A current gen i5, for example, at 3.5Ghz, will easily beat a 3rd Gen Intel i5 at 4Ghz. No question. A current gen Ryzen 5 3600 with a base clock speed of 3.6Ghz will best a 4th Gen i7-4690k with a base clock speed of 4Ghz. And that's core to core. That doesn't even factor in the fact that the Ryzen part has two more cores and four more threads to work with, so for anything that is optimized for threaded performance, the performance margin is going to be even larger.
Both Intel and AMD Ryzen have standard boost profiles that are used by their processors. It's not an either-or type situation. Both have them. It's not Intel boost against AMD overclock. That's nonsense and wherever you heard that is someplace you should stop looking to for information.
Ryzen parts do NOT "suck". They have performance that is incredibly close to the best Intel has to offer, enough so that the difference won't even matter in most cases because you will already be either past your 60FPS marker or near enough to your FPS low/1% that you'd see with the Intel part that there is no discernible difference in most situations, plus, the Ryzen parts are significantly cheaper in most cases.
So you are of course welcome to go with whatever you want, I have no qualms towards either camp, but do so knowing the facts. Don't do it because of some bunch of misinformation and misconceptions that are guiding you.