Already qualified the qualification round in Codejam 2021?

The Google Codejam 2021 is yet to begin and I see myself already qualified.

I know many others see the same on their profiles as well. Can I know why is it so?
Or does “Qualified” green check mean something else?

It means you are qualified for the qualification round. If you passed the qualification round, then you would see a tick in Round 1A, meaning you are qualified for Round 1.

It means you qualified for Qualification round, btw an important announcement:
KickStart Round A 2021 Ranklist will be finalized on 26th March 2021