This looks really cool.
I have never colo'd my laptop, but I do work off my Windows laptop from my Mac via Parsec (remote viewing software for gaming) and by flipping system settings so my Windows machine never turns off when connected to the power bank and lid is closed. There are obviously hiccups (if internet goes out, if Windows decides to restart from an update, etc.), but it mostly just works and I think I've only had 2 instances in the past 3 months where it's gone offline. I use Tailscale on top to provide a universal mouse server for my 3d mouse, and I'm able to magically CAD from my Mac.
Highly recommend if you need to use one OS/machine for some specific software (especially if it's beefy/heavy) but prefer using another as your daily driver.