First of all, Libs were saying this in 2021. And 2022. And 2023. And 2024. And each year I saw more and more people I knew develop very clear Long Covid, (although only a few acknowledged that's what it was, but they'd get covid for the 3rd or more time and complain about sudden onset of symptoms that were consistent with LC). I expect 2025 would be the same but I'm more isolated now and don't hear about it as much, plus the testing infrastructure has gotten so much worse that people aren't necessarily going to know if they got covid or something else.

There's no mechanism or selection pressure for covid to get less damaging, so there's no reason to think it's gotten better. The damage comes from the virus getting everywhere since it binds to a receptor that is in every cell, and the immune system fighting it off, which is what causes the damage that gives Long Covid such an incredibly broad range of symptoms. Yes it mutates constantly, but that part stays the same.

And the "multiple infections makes you immune" thing is hopium. Antibody efficacy for covid (whether from vaccine or infection) wanes fast because it mutates so quickly, like how getting the flu one year may not prevent a flu infection the next year, but worse. Much hay was made in crunchy circles about "natural immunity" (the idea that getting covid would confer better immunity to future variants than getting vaccinated) which has been thoroughly debunked by the fact that people keep getting infected over and over again.

I remember hearing that covid damages the immune system too so people who get it are actually more susceptible to other infection in general but I didn't follow if that was true or not. Seems like there was some impact but it didn't end up being as bad as HIV.