Instead of THE GUBBMINT being evil by LOCKING EVERYTHING DOWN in some scary QUARANTINE ZONE or the like, imagine a "got to build up zombie bite immunity" response, or one with pseudoscientific treatments, or pretty much anything so can feel like things are back to normal while zombies are just a thing that continues happening.
Add your own ideas if you like.
Zombies are played out. how about a dinosaur movie based upon economic and sociopolitical lessons learned since Covid-19.
I think that was the finale of the Dinosaurs sitcom.