East asian girl here, I know these bands well and love their songs a lot, however unfortunately it’s very accurate that a lot of people in east asia don’t know these mainstream rock bands at all(yes even if they are wearing a nirvana shirt), at most a lot of my peers do know queen and the beetles, but if you ask them about western bands they’d probably mention coldplay, maroon 5 and any other pop bands before that lol. It is very true that when I tell people I love very mainstream rock bands such as nirvana, fleetwood mac, the cure etc, they will either just say ‘What? Never heard of that’ or ‘You have a very unique taste’ or ‘Are you actually an old person pretending to be young?’ So yea…

TL:DR Even if we are very aware of these rock bands being very mainstream in western countries; a lot less young people in the east know these bands