The old me would have stayed quite and put up with it, but not anymore.

I’ve also learned my lesson to call this behaviour out quickly. There’s a group of people from a business (not here today) who have been members longer than me who are so loud, so disruptive, and essentially untouchable (management won’t confront them after I complained). They also know they’re bothering me and give no shits. So as soon as there’s a new disruptive group, I approach very quickly to teach some workplace etiquette they should already know.