A month update, the ugreen KVM working well, though I've noticed one oddity.
If I switch from my windows laptop, to my Linux desktop, the screen is black. I move the mouse, and mash the keyboard it will come back to life.
If I switch from my Mac Studio to my Linux desktop, the screen doesn't come back. If I'm lucky after moving moving the mouse, mashing the keyboard over and over, it may come back to life. Many times I need to shut the monitor off and back on.
There seems to be something weird happening when I'm active on my Mac and hit the KVM button for the Linux machine.
Not sure what's happening, not a show stopper given that the kvm largely works just a tad frustrating when I bounce between the Mac and Linux boxes.