She's joined Orthodox church after finding Catholics too woke for upholding hasic COVID restrictions, and constantly whines about Muslims.

Lmao, what the hell. I think you could easily show what a fraud this person is if you learn basic stuff about theological questions and history around roman catholicism, orthodox and islam. If she converted because of a reason as low as that I can guarantee that she doesn't really have any rationale about her beliefs except for explicit hate towards others.

That's just my guess ofcourse but I'd say you could easily get on her nerves by attacking her glaringly obvious ignorance on any of these religions.

I don't think you should engage if you don't feel like it, it won't change a lot. (I probably wouldn't) but to me it sounds like a very vapid person. I'm not religous at all and even I feel offended by "I abandoned my god and saviour because covid was too woke"