Congrats to the UT Austin admits! We're a lovely department, and I do hope you consider joining.
To those on the waitlist: I can't give any insight on your chances of getting admitted, as it depends on subfield/potential advisor/how many people accept their offers, which may be impacted by COVID, etc. As someone who was admitted off the waitlist, I would just note that the best thing that I did for my chances was attend the admitted students' day and introduce myself to the faculty that I was interested in working with. Good luck!!