Fair disclaimer: I'm over in America with no experience of the prebuild market over there, so take the following as it comes...
I am a lifelong Mac user (well, in my adult years... before that it was Amigas!) and currently tapping this out on a giant shiny Mac Pro. PCs are... well, alien to me, and I'm not a Windows fan to say the least. So I can sort of say I was in your shoes up until a little while back starting to look for a PC. After doing a fair whack of legwork in forums and whatnot trying to decide on what computer to buy, the answer I arrived at was... none of the above.
Build yer own.
That way, if (for example) you get dodgy RAM then you get that replaced and off you go again. With a prebuilt, often times the whole thing has to go back and you're in limbo for who knows how long. You also get to choose exactly (EXACTLY!) what goes in to it. Don't fear the building, it's honestly simple, and the only actual difficult bit I found was setting up and configuring it software-wise. (I will never understand my computer's BIOS, and the constant need to install this and that in Windows to get things to work drives me mental.) You can also make it "themed" if you're into that sort of thing.
My own PERSONAL choices were AMD over Intel for CPU. Not just by a little, but by a LOT. If you go that route, get an X570 motherboard as opposed to a B one. For graphics cards, NVIDIA over AMD. Although to be fair, the gap between them has narrowed - I just happened to be able to get a 3080 as opposed to... well, anything else. (This is going to be the sticking point, GPUs are really thin on the ground at the minute.)
Bit of patience and willingness to have your wallet explode later...