Only thing worse than monitor shopping is KVM shopping.
QFT
Would be curious what you (or others) went with for a 1440p monitor, as well as a decent HDMI KVM switch.
I have a cheap but decent 4 port with USB, sound and VGA. Even that was on closeout for nearly $100 at the time.
Mine had in keyboard switching, you hit a certain key or combo and it switched over, this was great until you start using smaller keyboards that were missing those keys and the fact that the key combo was different in Windows, Linux and Mac (I have all 3). It also needed a special driver/app in Windows if you wanted better control, which would crash. It also disliked attaching a USB hub, only had USB 1.0 throughput, and if you disconnected the machine it was switched to the keyboard would go dead and not allow you to switch. These problems became a major issue when I had the KVM in the basement with my servers/desktop and my office upstairs. I'd hook in a customer system, switch to it and forget to switch back, disconnect aaaand the KVM would stop functioning until I went down stairs and up on a ladder to manually switch it to an actual machine. Even reconnecting the one I removed wouldn't work.
As bad as this sounds, it was better than the in monitor switching on my old monitors.
You hit menu, navigate to port switching (which was slow and several clicks), select it, then the monitor would scan all of the ports looking for connections before switching over. However, if the system was booting, you connected the wrong port or it was not sending a signal that port the monitor would scan all the ports at 1-2 seconds each, then do it a second time, then go to sleep , which it would display for a few seconds. During all of this, all buttons were ignored and once asleep it would go idle for 5 seconds, then powering on took 2 seconds and guess what it did... It immediately started another port scan. The latter of this could be avoided if you set a default port, if nothing was found it simply reverts to the default. However, if you are working on another system and it reboots it would automatically revert back to default at the first flicker of signal loss. Not good if you need to see the Bios boot screen. That wasn't the only problems these screens had, but at least that could be chalked up to being a defect, this was programmed to be this way. Compare this to my Dells where I can program the buttons to fast switch to a different port with a single press...
I've since ditched the KVM (now that I'm free of those monitors), for the number of systems I work on it was cheaper and easier to just get use a combination of remote networking and built in port switching on the monitor, along with a spare mouse and keyboard. When it's easier and cheaper to buy a used monitor, a bunch of dongles, extensions, mice and mechanical keyboards than a KVM, you've seriously failed in your product design.