This is surprising to read, guess it depends on where you live? Different countries are still at different stages of the pandemic, and it is most certainly not over for a lot of them, especially with the delta variant causing a third/fourth wave.
The pandemic is over in America (for now), definitely not true for all of the rest of the world though.
I do suspect while there are long term complications from particularly bad covid cases (lung damage, etc.) - the OP is probably right that the more generic “long covid” symptoms (fatigue, brain fog, heart rate) sound a lot like physical symptoms of anxiety - I’d expect probably those numbers to go down.
especially when talking about UK, it's far from over (no matter what Boris Johnson is telling his people). With 30.000 cases per day and more opening up planned (and the Euro finals tomorrow), more and more people will get covid. Even if the death rate will be low compared to last year, people will get long covid. Probably hundreds of thousands of people. There are already 400k people in UK who suffer for more than 1 year from long covid. [1]https://www.telegraph.co.uk/news/2021/07/01/almost-400000-ha...