My bedroom media pc (old-ass enterprise tower) has 8 on the back and 5 on the front. So 13 usb ports. It doesn’t have any wireless anything, physical ports only, and there’s no room to add internal cards for it, but plenty of usb ports for dongles!
I use 3 of those ports at most (I use Ethernet, since it’s my acquisition machine, or it’d be 4), and 2 are for keyboards and mice (one handheld with touchpad, the other a normal set).
I’m struggling to even come up with 7 things that would all need to be plugged in together… I guess webcam, mouse and keyboard if they can’t run off a single port, and headset maybe if you got one that bypasses the audio jacks for whatever reason… but that’s still only 4.