Yeah, so I just checked, it brings up a Ubisoft Connect windows and then boots. It has less of a launcher than, say, Baldur’s Gate 3.
I don’t know if it makes you log in the first time or it creates a new thing for you by default, but I can tell you I had more account and launcher trouble running Warframe on a new PC this week than I did playing any recent Ubisoft game.
BTW, you can link up your Steam account to Warframe now and not have to log in each time and man, that only took a decade. Still didn’t piss people off as much as Ubisoft being on Epic, though.