https://www.androidauthority.com/desktop-mode-march-pixel-drop-3646069/
https://lemmy.world/post/43840125

Your Pixel can now double up as a full Android PC with nothing more than a USB-C cable - Lemmy.World
This has been hidden in developer options for a while now, but they’re now
releasing it officially
And a monitor that supports usb-c, I assume.
DisplayLink. The Dell box I use to hotdesk my office laptop by day also works as a KVM on my pixel 9a. I get power, monitor, keyboard, mouse and ethernet on one cable.