I have been looking into alternatives to Facebook and have come across the diaspora project https://diasporafoundation.org/
I don’t know enough about how easy it is to use for non techie types, but it is non-commercial, privacy can be controlled by the user, and there is no data mining. In other words, it’s everything Facebook isn’t.
Link to fb post with more details,
meeting times are 8pm Wednesday, 7pm Thursday and 10:30am Sunday (all times CET) I think the zoom meeting opens half an hour earlier
Here's the Zoom link in case you don't want to go on Facebook to find it https://zoom.us/j/4939374385