I don't think for myself, it's primarily the fault of bots, misinformation and ads. It's.... Us. We're not as interesting as we like to think we are and I have just gotten exhausted slogging through the "look what I can do" posts.
It's much more rewarding for me to follow videos or threads of people actually creating something that interests me than it is to scroll through feeds consisting of online acquaintances posting memes, pics of purchases, food and locales.
My preferred medium is YouTube subs via freetube of channels whose content appeals to me(carpentry, car builds, mtb, etc). I don't use any social aspects of the platform, I just like to watch the content.
This has been Tesla's modus operandi since day one of Musk's involvement and the bootlicking fanboys have helped blame the victims of the failures to keep legitimate claims from gaining ground in recalls.
I ran a niche VW community and for a quarter of a year, I singlehandedly posted multiple posts daily. No downvotes, subscribers gained, 50+ up votes on some but practically 0 community engagement or content. Lemmy is too small still to support anything but politics or tech of a certain slant.
I disabled it on my phones. I've found it to be completely without value.