Yeah but if Marks looking for the busking vibe it would probably be super difficult to do at all in if he’s in Korea. He could make acoustic guitar songs sure, I think 1999 fit that vibe, but imagine the stampede if NCT fans in Korea learn that Mark is going to be busking in Seoul. That would probably cause a full on stampede, which is a little bit of a different feel

Honestly I don’t think it would really be possible at all if he’s actively in NCT, even if they specifically secretly send him to other countries for that, because while he’s actively in NCT the fan base would just be way too huge and actively wanting to go to all his performances. It would be different if he just wanted solo songs of a certain genre like Chaeyoung, loads of SM artists (including Mark) have been doing that for many years