Need to submit selfies? I don't recall submitting selfies.

I own stocks, all I had to do was fill in the forms on freetaxusa.com based on the forms the brokerage gave me. Just look for non zero fields on the brokerage forms, and fill out the matching box.

If you mean something more sophisticated tax-wise, then I'm sure direct file wouldn't support it either?

Regarding the sim card, I assume that's about two factor codes? IIRC I always logged in through a code received by email.