Does Covid 19 have any upsides?

Yes.

Several.

The economy will be optimized.

People will get out of the habit of socializing unnecessarily.

People will become more emotionally self-reliant.

Fuel will no longer be dissipated.

People will begin to see the system for what it is.

Basically, people will become more monk-like and will undergo a Zen-style kind of enlightenment.