Went cold-turkey off IG/FB a couple months back and had already ditched Twitter a couple years ago. It was a weird switch at first (especially IG). There are just some people I'm probably never going to be in contact with again, and for others, I won't have passive daily updates on their lives. Honestly, I think that's normal. It's just not the cultural norm. There are definitely things I miss and events I don't know about, but I'm still filling my life with great things and am just texting people instead. This place has effectively been a public gratitude journal, and Bluesky is where I can still toss unhinged takes into the void as well as get my news. As with most millennials, I'm admittedly still wired to seek validation from people on the internet, but cutting out an algorithmic-driven life has been so much better for my mental health. The more I learn about the perils of big tech, the more I wish people in my life felt empowered to do the same, but I get that people have complex relationships with the big platforms.
Edit: I guess I also have Substack, but the 'social' aspects of it are so unappealing, I hardly ever look at it.