Domestic travel is basically normal now if you're doing roadtrips or hiking in parks etc.
The main things I'd like to return for normalcy is not having to google covid rules for interrnational travel (covid tests for entry/exit, can book separate tickets for one itinerary without worrying about transit country rules, curfew/quaranine etc).
Showing a vaccine card or minimal mask compliance indoors isn't that criitical for normalcy.