Asymptotic is a different classification than presymptomatic. Both occurred and “Both are difficult to stop. Presymptomatic spread is believed to be far more common than asymptomatic spread.” https://www.webmd.com/lung/news/20200609/who-clairifies-comm...

Critically, you don’t know the future and have no idea if your presymtomatic or not. It’s only relent for contract tracing not masks.