I don’t know about the underlying technology, but every client I’ve used for the past couple decades supported groups.
However, they absolutely sucked. There was no way to leave. Unless someone made a new group without you and everyone used that, you’d keep getting messages.
Yeah, my boss expects that. He’s been at the same company for almost 20 years, since the department was created.
He also gave me a 3% raise this year. It’s nice to get cost of living, but why would I try to invest in a workplace where I know I’ll be able to make more and more elsewhere every year.