Everyone who plays Genshin Impact and Honkai Star Rail, two of the biggest games in the world, will listen to Chinese songs in the course of playing.I'm sure Mandarin songs are just as nice as English or whatever songs but again they are nowhere as popular or as common as English ones because of language.
It's also the same reason why most(I think) of us don't know any famous Zimbabwean or Hungarian singers even if they have voices of angels.
OTOH someone like Taylor Swift, Elvis or Beyonce is known worldwide. I'm 99.999% sure if Taylor Swift had only ever sung songs in Hindi or Bulgarian she would not be well known.
I don't think you can compare the market of 1.5 billion Chinese speakers with Zimbabwean or Hungarian (both of which ironically sing in English and maybe some French).
Listen for yourself, Zimbabwean music is just western music.

