But the old ways of communication haven't gone anywhere.
There are still blogs, in a better shape than ever, with Patreon or Substack to help financially support them.
There are still forums for specific topics, standalone, as subreddits, all the way to stackexchange.
Three is a ton of IMs for any taste, as decentralized as you may want.
Even the old Fidonet is born again as Mastodon, you can run your own node, or take a "point" on an existing node.
The thing is, of course, that 99% of the audience are in the swamps of Facebook, or in the gladiator arena of Twitter, or the beauty contest of Instagram.
These 99% were not online in 1993. They have little interest in blogs, forums, detailed discussions on deep topics, botherations about privacy, any technical details. They just want to talk to their relatives, share some vacation photos, listen to music, watch videos of funny cats. This is the norm. This is fine.
When the 99% moved in, the old internet did not disappear, it just was shown the scale: "nerds" (not necessarily computer nerds) vs "the rest of the population".
Deal with it.