wuseman
Yeah, I assume some ways do exist. I used such already. I meant the Authy Desktop app, not 3rd party apps. I read your advice on "login on a desktop" as using the desktop version of the app.
And again, not sure if the Authy Desktop app can sync the data from your mobile app as the desktop platform has already been discontinued.
Anyway, I described my method of migrating above. But it can be irrelevant anymore since the recent changes.