Did you get a checkup? I had loss of sense of smell 4 years ago, some bacterial infection of paranasal sinus, treated with antibiotics. What I mean, maybe initially you lost it due to Corona, but some bacterial superinfection keeps it away.

covid based loss of smell is suspected to be a result of an infection of the sustentacular and basal cells in the olfactory epithelium. It should return once the infection is gone. You should probably have that checked out.

Some of it returned, but a bit messed up. Same with my girlfriend. Same with several friends. It's pretty common. I only regained the ability to smell natural gas somewhat in the last month. It varies day to day whether I can smell it, though. Or smell at all.