I wish there was a phone-laptop-dock solution that wasn't as expensive as an equivalent Chromebook. My phone is more than powerful enough to act as a travel laptop, yet its potential is constrained by a small touch screen..
I've only ever used Nexus/Pixel phones which haven't supported USB-C external monitors until just 1.5 years ago with the Pixel 8.
Sadly like many of their great features it was not well known....
https://www.theverge.com/2015/10/6/9464639/microsoft-windows...
In case glasses are an option, I heard that Xreal glasses can be hooked up to Android phones directly. Such a setup with a proper Android desktop mode (or even better: a Linux VM with all one's dotfiles and everything) would be fantastic IMO.