The fact is that Germany is uncomfortable with growing econo-political position of Poland
That sounds like something straight out of TVP. It's laughable, because Germany couldn't care less - if Poland gets richer, they'll buy more German products. And anyway, the Polish economy is so heavily dependent on Germany, beyond looting people's pockets through state-controlled monopolies.
and with the political innitiatives Poland is part of/creator in Central Europe
You mean the initiatives that were met with apathy by everyone except Hungary, and even then, they instantly went off and did some dodgy deals with Putin instead?
I remember distinctly how the Slovaks turned round and said that they wanted nothing to do with PiS antagonising Brussels, and the Czechs have made it crystal clear in the last few months that they regard the V4 as being additional to and not a replacement for the EU.
Poland has lost a tremendous amount of influence. It's very apparent that people how people like Babis go on visits to places like Estonia, but they don't bother coming to Poland.