The bar for passing is surprisingly low.
The bar for stealth is impossibly high.
Tits, hair, makeup = girl. I sound like a middle aged cigarette salesman, but I have those three things on the right side of femme, so complete strangers default to she/her.
But complete stealth is impossible, there'll always be something that gives you away, and at the moment everyone is on high alert so stealthoids can't stay hidden from every direction.
Learning to accept this reality is the key to self-acceptance. I'm always going to be trans, but the world really does see me as a woman.