This is true, but only for now.
The point of decentralized social platforms is to eventually include everyone. This is not to say this is Lemmy's goal, but it is certainly the goal of its users. The tech-illiterate will show up en-masse (they always do) and what will be our answer for it? From what I see, we have none - this is no different than living on borrowed time.
We have to remember that "enshittification", before all else, is a cultural issue. When the people that have this culture arrive, the whole platform will suffer for it (hence what I said earlier). Humans are just better with dealing with this in real-life, but the internet poses a lot more challenges that I just do not think we are ready for.
I am a dev. The example I gave was meant to be a POV, but in hindsight this was not clear. Because of this, I cannot meaningfully answer your question.
This topic still deserves genuine and transparent research. I have no doubt there are people already working on this, but I have not seen any notable results.
[OFF-TOPIC] To be completely frank with you, I've think that our communities (federation and open-source) are too splintered. Not in the sense of head count (this is good) but in terms of duplicating and abandoning work (this is bad). We really need a way to get a community-pulse on what is generally needed/wanted. I am not sure what the solution for this is, but I know there is one.