Law / If I buy a flat in Poland, do I get residence permit? [12]

Merged: Does a quick way to obtain permanent residence permit after buying an apartment exist?

While signing a contract at a notary office I was told that such a possibility exists for someone who's not an EU national who buys an apartment in Poland could get permanent residence (staliy pobyt) faster than in 5 years on terms of being a real estate owner.

Unfortunately, notariusz was quite reluctant to provide any details regarding this option. That's why I'm asking if anyone had such experience?

My family & I enjoy our stay in Poland. However, waiting for 5 years to obtain a permanent residency looks like a long-standing burden to me. If something will go wrong I would need to get back to my country of origin, hence to see friends in Poland I would need to get a visa every time which sounds terrible to me since I've been here for a long time.

I'm considering to move to Germany in order to obtain a permanent residency quicker than in Poland.

P.s. I'm Russian