Where does Lemmy use this technology? Or did you mean apart from Lemmy there’s not many sites?
If I notice sites employing stuff like that which isn’t blocked by ublock I will most likely stop using them unless they’re insanely useful.
You’re not talking to a regular user here. I know how the web works and what tracking and fingerprinting is. Please stop trying to normalise predatory web design practices. You already landed on Lemmy, so you get a taste of what a web without surveillance capitalism could look like.
Maybe think about what tools you really need and what tools don’t really give you benefits that outweigh the invasion of privacy of your users.