God knows if she is genuine in her conversion or if she is just launching another scam..

Conversions can be a very quick thing.. I took about 6 months to transition into being a Christian.. I know there are people who attend a church service and become Christians during the service. It's like a switch gets triggered in their minds..

She sounds like some politicians.

No. My family silently became nonreligious.

I would point out that people become Christians because they realise they are sinners and need forgiveness not because they are good people. Sounds as if your mum sure needed lotsa forgiveness - but then we all do.

No, but I have had one suddenly become political. That's even worse these days, I think.

Is she getting on in years? She might be doing the christian thing of sinning with great enthusiasm until just before death, then being born again to guarantee a place in heaven?? XD

Lonely elderly people suddenly seem to “find god.”

I think it’s to cope with the idea of things coming to an end.

Sounds like yer Mother has egoism? Christianity teaches to rid oneself of such a thing.