@mmisamore @pezmico I'm not sure there will be any. People don't write papers on what's _not_ happening.
Long Covid was always more prevalent and more severe in the people who had the most severe Acute Covid. That's not to say that you had to have risk factors or severe Covid to develop Long Covid, just the likelihood of it.
Also, most Long Covid itself is mild. Can't smell or have a lingering cough five weeks after Covid? That's Long Covid by some definitions.
Then there's recovery. Plenty of evidence that there are outflows of LC as people recover.
With each wave, the ratio of severe disease to cases has been more favorable.
Add it all up, and it would make sense for fewer and fewer people being affected with LC, even if Covid is still circulating.
Now, I'm not saying it's no big deal. I'm saying that in a nation with something like 28% people disabled from the start, Long Covid is 'only' adding 130 basis points to that, and that number has trended DOWN. The impact on society hasn't grown and grown, it's faded into the giant mass of existing disability as just another contributor, and it's shrinking anyways.