I remember when motherboards had AGP, PCI, and ISA ports, as well as the memory slots, the IDE ports, the floppy port(s), and a lot of jumpers for additional configuration and CMOS clear.

Nowadays its all PCI Express, m.2 (still PCI for modern nvme) and SATA. And of course memory slots but these are all dual or quad cannel. And rarely a few jumpers, mostly one for cmos clear (modern mbs have a button instead).