What is the opinion of Reddit about the
CKLau 4Kx2K HDMI KVM Switch 16 Port with Cables, Rack Mount KVM Switch Support HDCP, EDID for Windows, Linux, Mac, Debian, Ubuntu, Fedora, Raspberry Pi and Ubuntu?

You’re probably not going to have luck finding much and what you do find will be very expensive just by nature of either being low demand or enterprise level. I found a couple things but they usually have a drawback.

16 port switch that can do 4K but only at 30Hz and $380. The 8 port version is $280 but has the same drawbacks.

8 port switch that claims to support 4K 60 but also very expensive at $360 and only has 8 ports.

I’m sure you can find something but you will be paying a lot of money to get a single unit with your requested specs.

https://www.amazon.com/dp/B07P45WJ3X/ref=cm_sw_r_cp_apa_glt_fabc_7QXXJDMWB5J8AMVJJESS?_encoding=UTF8&psc=1