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Yes it does. It’s just rare.

Severe cases of the flu can certainly cause chronic issues, as can severe cases of COVID.

I am not aware of any compelling evidence that minor cases of COVID cause severe long-term symptoms at any substantial frequency. Assuming vaccine efficacy remains at a level where severe COVID cases are extremely rare amongst vaccinated individuals, I see no reason to worry.

You'll likely get data about it in the coming months/years. There is one looking into loss of taste/smell for "mild" cases for example.

Are you sure?

This study [1] finds some interesting long-term effects coinciding with cognitive impairment and might be a good starting point for screening the current state of influenza research (via references to/from this one).

[1] https://www.jneurosci.org/content/38/12/3060