None of this you have to deal with when you can just go to something like r/buildapc or whatever forum and ask if you don't know. They will point you to a good set of parts or might even have some "known good" options. It's not all that different from say following MacRumors buying guides.There's more to building a pc than component prices and how easy it's supposed to be. You're glossing over a lot of market and manufacturer problems. Sorry.
With Apple you also end up with compatibility issues, whether it's a software not working with M series processors or a peripheral that refuses to work right due to Apple shenanigans. I mean there's lengthy threads of people trying to get their OLED TVs or ultrawides to work nicely with Macs where there's a lot of weird gotchas you won't find out from anywhere but...enthusiast forums like this one.