I went to the theatre wednesday.
Good news! I was not the only person masking.
Also good news: the play was really good. It was about cryonics: freezing and storing dead bodies in the hope that future science will be able to revive them. The actors were all workers at a cryo-preservation facility, each with their own motivation and beliefs. This is not a theme that I care about at all, though it did make a good setup for talking about life and death, about what makes life worth it right now vs in the future.