I've never actually played in a game that has tieflings, where people stuck to the 5e appearances. No one I've played with enforces the tief retcon.
Also, as much as the books say the tiefs are treated with suspicion and even stigmatised, the only places where I have actually found that to be the case is in one of my friend's homebrew worlds (where it was non-human prejudice, not just tiefling), and in BG3. Never actually seen it in an official adventure book.
