I wonder if the single monitor limitation is a hardware or software issue? The reason I ask is that my ThinkPad X1 Extreme can only handle a single external mo

I wonder if the single monitor limitation is a hardware or software issue? The reason I ask is that my ThinkPad X1 Extreme can only handle a single external monitor running any recent version of Ubuntu, but on Windows 10 I run it with two or three external monitors with different scaling factors. I've used either a ThinkPad Thunderbolt dock or currently a Cable Matters mini-dock with two DisplayPorts and one HDMI. So I gave up on Linux on the hardware and run it in a VMware VM under the Windows 10 host, or under WSL2 depending on what I'm doing.