I haven't done the smart phone one (though I really should, the only reason I don't is that I'd miss Conversations, the messaging app I use), but I did give up

I haven't done the smart phone one (though I really should, the only reason I don't is that I'd miss Conversations, the messaging app I use), but I did give up on social media years ago and had a similar experience. When I first deleted Facebook I did have a few friends who would constantly get mad at me for not being at movie night or something then realize they never invited me because they just spammed an invite out on Facebook. This actually offended me somewhat as much as it offended them that I wasn't there: you care so little about our friendship that you couldn't even be bothered to make sure I had RSVPed or invite me personally? But after a while people got used to it and it stopped changing anything except that I felt better and was less angry day to day. I only recently went back, but instead of any of the big networks I went with a Mastodon account from social.coop. It's similar to Twitter, but the lack of retweet-comments makes me less likely to make snarky replies to things then feel bad about it and wonder why I said something I wouldn't normally say in real life afterwards.