What is the opinion of Reddit about the
TRENDnet 2-Port USB KVM Switch and Cable Kit, 2048 x 1536 Resolution, Device Monitoring, Auto-Scan, Audible Feedback, USB 1.1, Compliant with Windows and Linux, Hot-Pluggable, White, TK-207K?

Like type the same characters at the same time or switch back and forth between pcs at the touch of a button?

KVMs have been around for 30+ years, you can do something dirt cheap like this guy:
https://www.amazon.ca/dp/B000F4C310/ref=cm_sw_r_cp_apa_i_5OghFbZNZ1S0R

Or spend a little more and have a 4 port 4k kvm for around $150
https://www.amazon.ca/dp/B07G883R35/ref=cm_sw_r_cp_apa_i_NQghFbE50DD83