We are at a 60% vax rate. People would like to return to 2019 behavior. Most are.
Herd immunity under a 60% vax rate and 2019 behavior is where we are headed. Might as well ask what that looks like.
There's not a whole lot more you can do about it in a western nation, given what we've done to this particular points (lots a woulda coulda shoulda though). If boosters are required, even more unlikely you ever get there. If repeated boosters are required, forget it...it's over.