Same! I've been paid to produce and deploy software solutions for maybe slightly less time than you (under 20 years, more than 15). I technically still have a Twitter account that I literally never login to or interact with in any way. I have zero "social" apps on my rooted phone. I dumped Facebook after grad school. I never opened any insta, tiktok, etc. I do not blog. I do not post weird updates on LinkedIn either. I basically opted out of the entire "digital social" thing altogether. People who are important to me know how to contact me. I don't feel any need to "have a presence" in the digital social sphere, outside of leaving my thoughts here sometimes (because I respect this site, how it operates and it's community)...and because it hardly feels like typical "social" stuff we see today.
So, I guess my point is that like you I've found that it doesn't really seem to matter to my career, my compensation or my ability to be happy or feel connected to others. You're in good company. Cheers!