Haha that's me but with my phone, as soon as I get to work I plug in my phone to a kvm that has a monitor keyboard and mouse, my phone has a desktop mode that I use on a second monitor while my main monitor is my work laptop.
This way I can switch between my personal phone and work computer, on my phone I mostly just have chats open or I vpn to my home lab to fix issues with my media server or game servers, if things get a little too wild I jump into a VM so I have all my tools. I also use this to edit photos or other projects during my lunch and breaks.
My work requires a lot of waiting for machined to reboot or go through tests so I like this setup that keeps my browsing on the guest network and non work device, and at the end of the day I just unplug one usb c and put my phone in my pocket so I don't have to worry if I stop at a grocery store on the way home about carrying a bag with me everywhere with a laptop
Hey, that's really nice! I always wondered what's the actual real life use case of the external monitor desktop mode on the phone. Your workflow is a perfect example of that.