I was a Gentoo and Arch user for some years. Tbh OpenBSD is just a lot less tedious to set up, use, and maintain, the documentation is soooo much better, the code quality is way better, I prefer a lot of the tooling over Linux stuff (ports system as in bsd.port.mk pretty good, OpenBSD ifconfig is the best networking tool ever, xenodm is great, OpenBSD init works very well, etc), it's much more reliable and probably a lot more secure (besides the novel exploit mitigation techniques they are famous for, OpenBSD just has better default settings for everything)

It's just a much more cohesive and coherent system that comes with most of what you want by default