He primarily disguised himself as Keller, Nick Fury’s boss at S.H.I.E.L.D. Avengers: Endgame takes place nearly three decades after Carol Danvers’ origin story, so it would be unusual for Talos to being using the same guise after all this time, although if the real Keller has since passed away, it’s not like that would cause any major problems.
In case you didn’t see Captain Marvel earlier this year or need a refresher, like most other Skrulls, Talos is a shapeshifter, so it was easy enough for him to blend in when he landed on Earth in 1995.