Depends where. Vietnamese neighborhood can go down to like $10. Outside gets up to like $25. Banh mi Vietnamese neighborhood down to like $6-8. Outside up to like $20. One common complaint I hear from restaurants for any food that isn't European is that people expect their food to be way cheaper than European cuisine regardless of ingredient costs and prep/labor/time/etc
Like it could be worse like Italian restaurants selling cacio e pepe for $20 or grilled cheese/melts for $15. French restaurants selling 8 cracker sized pieces of a baguette adorned with a slice of meat and a pea sized dot of sauce and a small microgreen for $20
Cost of beef probably screwed pho especially. The rest of Viet cuisine, protein is often pork like banh mi so the price hikes haven't been so bad