Some amazing people have made this happen for Mario Maker 2: https://opencourse.world/ https://opencourse.world/ If you have levels uploaded on the official s

Some amazing people have made this happen for Mario Maker 2: https://opencourse.world/ https://opencourse.world/ If you have levels uploaded on the official servers it's a straightforward process to get them copied over (and that step can be done with an unmodified game+console).