What is the opinion of Reddit about the
StarTech.com StarTech.com 4-Port Dual Monitor HDMI KVM Switch with Audio & USB 3.0 hub – 4K 30Hz – 4 PC Mac Computer KVM Switch Box for HDMI Display (SV431DHD4KU)?

So assuming that you run HDMI from all your sources. My guess is you are looking for something like this: StarTech.com 4 Port HDMI KVM Switch – 4K 30Hz – Dual Display https://www.amazon.com/dp/B07C5G2PCW/ref=cm_sw_r_cp_apa_i_27pwCbXS69EM0

It offers dual output for multiple monitor/display setups. You actually don’t need the KVM portion because you are running consoles. But if you want to run multiple computers with single IO inputs you could!