I would say the majority of users of FB and IG are for social media. That’s why small business use them for ‘selling household items or organizing ride sharing’. I personally cannot think of another social media app as dominant as FB(including IG). If you happen to know one pls let me know.
> That’s why small business use them for ‘selling household items or organizing ride sharing’
Not organised by small businesses, it has nothing to do with any company. Just some dude(s) (or gal(s)) that run(s) a group called "ride shares between Cologne and Koblenz" where people post when they'll be driving, or "fleamarket Cologne" where people post their stuff (not sure how this isn't just a bad/limited replacement for ebay, but that's what I see Facebook being used for).
As for replacements for the other parts of Facebook/Instagram, I don't know because I didn't switch away from using Facebook or Instagram: I've never used it. If you mention what you use it for, I can tell you how I achieve those goals instead. If it's keeping up with people, it's by meeting and chatting. Or if they don't have chat, then email and meeting. Or if you mean how to share pictures, I guess that would again be email or chat.
