“I thought that was normal MAGA loonie. Is that QAnon?” asks Will (Jeremy Shamos) of his husband, Adam (Jeff Biehl), after they watch a TikTok video by their neighbor Jeanie (Crystal Finn) in the San Antonio suburb they have just moved to. Alas, pretty much everyone is familiar with MAGA looniness these days, but QAnon may be hazier, or merely shorthand for crazy. Anne Washburn tries to illuminate these dark corners of the Internet in Anon. The play is admirably ambitious, overlaying the story of the indoctrinated Jeanie and her family and neighbors with motifs and scenes from Shakespeare’s King Lear, though the results are mixed: ideas and characters feel as though they are still in the process of being worked out.