There are more potential side effect claims of Covid 19, more than I could possibly keep track of.
Yet one more claim is a drop in fertile sperm counts for 60 days after infection. Its possible a cold could have had this effect but the research never went in that direction. The more research the more we will see but it all won't have significance.

The most controversial claim I share is that we kinda did this to ourselves, as a species that is. Bio weapon development never stopped. The holy grail to bio war was weaponizing the common cold. However I have no ambition to belabor or debate such notions.