i’d say if it happens it should start with focusing on:

• government and workstation (this is important first to have control and independence over so that government isn’t beholden to the whims of foreign companies)
• then server (maybe - idk really if that’s worth it though; it’s a whole can of compatibility worms and adoption expense)
• then user desktop

though there is the argument that workstation and user desktop are close enough to each other that user desktop should be above server, but i’d imagine it’d be more of a “home user” than gamer situation. i could imagine some regulations around refurbishing old tech with this kind of OS too, and this would be more about low spec machines (that’d help workstations too)