LaTeX is great for documents, mediocre for slides, questionable for spreadsheets, useless for mail and calendar.

Matrix/Element has shitty usability and reliability compared to Discord.

For lots of communities, they could use modern forum software like Discourse with better results.

Yes, there are all kinds of dance events from the formal to the casual. It depends where you live, I guess what’s on offer.

Vienna has a fantastic ball culture for example.