I use Mac’s at work and whenever I have to use 3rd party accessories (keyboard, mouse, headset, USB switch, etc) that are not apple products they tend to have some issues. I use the same accessories on my personal PC and have never had any issues that unplugging and plugging back in didn’t fix. Also I hate that I need to use two USB C to HDMI connectors to have two displays connected to my laptop.
It very well could be the mac that I have. It’s a work laptop so it’s not the top of the line mac book pro, so some more advanced display features may be missing. I haven’t tried the dual displayport connection only HDMI. Might be worth checking out. Thanks for the tip!