Well, most platforms operate primarily as an algorithmic scroll based feed, and the actual utilities (like event planning, or marketplace) are related to second class citizens – used mostly as a hook to get you to stay logged in.

I've had a lot of success lately relying exclusively on Partiful as my one social app. I know it's nearly an inevitability though before they will need to monetize and introduce some way to ruin the elegance.

(My proposal for the modern successor to Zawinski's law: Every social media platform attempts to expand until it has a scroll-based algorithmic content feed).