exception of GPUs

To an extent, motherboards, too, and even before the GPU prices went ballistic. I bought a Z87 mobo back in the day for 80 or 90€ and the most expensive mobos were around 300€ or so. The X570 mobos in 2019 started at 250€ and 550 mobos didn't even get released until at the end of 3000 series Ryzen. Who in their right mind would pair a 200€ R5 3600 CPU with a 250€ mobo?

I bet most of the budget-minded people who bought a R5 3600 CPU never got to use PCIe 4.0. And to add insult to injury, budget GPU-s started using PCIe 4.0 x8 (or even x4) instead of x16, effectively gimping them on budget mobos.