Edit: I’m glad so many of you have had no issues with multiple monitors. My set up is a little unusual (3rd display is an infrequently used large tv hooked through the receiver) and is definitely solveable but will take some effort (and honestly, I’d rather spend my spare time outside or with friends, so who knows when I’ll fix it.)
It’s because one of my three is a sporadically used tv that’s hooked up through my receiver system. Windows had trouble with it too and in more irritating ways. I just have to sit down and do some work to create a way to easily toggle between 1, 2 and 3 screen layouts/settings etc.
I have a similar use case with my PC and TV. My PC is across the house from the TV and is connected via an HDMI over Ethernet KVM for when I want to use my PC as a gaming console.
What I ended up doing was creating an automation in Home Assistant to turn on my KVM via a smart plug, then wake-on-lan my PC, and intiate a Steam Big Picture mode gamescope session. This was pretty tedious to get working all together, and startup time is pretty abysmal (around 1 minute to get fully into Steam), but it does actually work consistently.
In case anyone is interested in replicating my setup: I’m running NixOS 25.11 with the Jovian flake installed, and launching my session via the systemd service
run_gamescope. If you’re not on NixOS, you should still be able to build your own solution by emulating the Steam Deck startup services (honestly, it’s not that complicated), or looking into projects like ChimeraOS.I wound up using a physical switch that toggles a PC display off and toggles on the TV display so the system just slots it in. It only works because I don’t really need all three working at once (i.e. I just use the TV output to watch TV).
But yeah, neither windows or Linux handles dynamic display changes very well.
I’d posit Linux is still far superior. Especially with stupid little things, like one of my displays acts like it’s fully disconnected when it’s powered off at night. Which then tells Windows to disconnect the screen and fuck up all my app positions regardless of wether, “remember window positions based on connected screens” or what ever is set. It takes many seconds for that asshole to reinitialize the whole fucking desktop, always with programs in the wrong fucking place. Every. Time.
Linux doesn’t give a fuck, changes desktop layout instantly, doesn’t assume where I want my windows, and is by all accounts just far superior. I haven’t messed with this fresh install too much to know if there are weird little edge cases I’m not noticing, but so far, Linux is absolutely kicking Microsoft’s ass and taking its lunch money (I wish more than figuratively).