Anything in engineering or construction will be done on "real" computers for a very long time. And yes our new hires sometimes struggle with using them, especially "legacy" software like Autocad and Revit which seem to have a permanent foothold in the profession despite being extremely flawed- but they are the "industry standard" and every contract ever will require them for the foreseeable future. I can only assume that most professions have their own version of this. It's pretty much a whole different world than the intuitive touch pad voice controlled world that gen Z grew up in. Dealing with those sheetty computers in the 90's built character I tell ya.
I got a Geekom mini-desktop at home. Its basically just a hub with all the specs you would expect out of an actual desktop. I currently have 2 monitors, keyboard/mouse and a camera/speaker/mic combo plugged into it. Depending on what kind of monitors you get it could be relatively portable.