I can only speak for myself but for me a support group doesn’t always have to focus on things that arise from a diagnosis. Sometimes it’s nice to just shoot the sh** about work, friends, kids, worries, a planned vacation, whatever, with people you have commonality with. I’m a vet and some people go to VA medical center not because they have an appointment but to just talk about the engine problem their car has or how a person lost their purse. It’s not the topic it’s the comfort you have with speaking about what you want without the worry of judgement.