I already got mine! I received my citizenship 3 years after moving to Poland.

It's a simplified process for Karta Polaka holders.

After moving to Poland with Karta Polaka, you will need to apply for a permanent residence permit. It takes around 6-8 months from the time you apply to receive the permit.

Then you would need to live in Poland for at least 1 year and pass the B1 level official language certification.

The exam is pretty tough, as it has 5 different sections.

The hardest part is actually registering for the exam. It happens only 4 times a year. And you need to book your spot within 2-3 days when registration is open.

After failing to secure a spot several times, I ended up enrolling in one of the courses that promise you a registration after completing their course. Also, receiving the results is taking around half a year.

You can find all instructions and the list of required documents here - https://www.gov.pl/web/mswia-en/apply-to-be-recognised-as-a-polish-citizen.