What?
I see less than ten FPS difference in almost every title, less even if you look at the minimum/1% FPS scores rather than the peak scores which almost don't matter because problems don't typically occur at peak FPS, they occur at minimum FPS.
Plus, the i5-10600k is a 115 dollars more than the Ryzen 3600, which is a TERRIBLE price to performance ratio just to gain a few FPS that aren't going to make any difference for the most part anyhow. It's not enough of a difference to put you near or over 144fps for most games, and both are clearly well above 60fps on most titles, so really, there is zero benefit to those extra frames in this scenario. Now, that could change if you are trying to run competitively with much lower settings than most people are going to run, but even so, I suspect you'd find that the differences were STILL not far apart. Plus, the Ryzen motherboards that can be used with the 3600 are much cheaper overall than the cost of the unlocked Intel boards. You can get an EXCELLENT B450 Gaming Pro Carbon Max for like 165 bucks. Any equivalent quality Z series Intel board is going to cost you well north of 200 dollars.
Besides which, unless you DO run competitively, at low settings, and need maximum CPU performance to keep the frame rates very high, I agree with madmatt that upgrading the graphics card is probably your much better upgrade right now for most games and most scenarios.