How do you manage your computers and displays?

Hello HN, stupid question time possibly...

Like many people here, I run a handful of devices. 5 specifically:

Work Laptop (TB3), Macbook Pro (TB3), Desktop PC 1, Desktop PC 2, Games Console

While I may look to replacing one of the desktops with a VM at some stage, for now I'd like to share all of these with 1 mouse, 1 keyboard and a (monitor with HDMI x1 and DP x1). I was looking into a sort of USB-C switch, possibly, but they seem very uncommon.

I rarely have more than two on at any time, and a 5 port KVM seems like overkill (If they even exist). Is there a "one button switch" solution to this?