This is my fear also. I am quite pessimistic about the future of E Europe.You make a valid point. Historically Germany (to include its most recent great power antecedents) has oscillated between cooperation with and hostility to Russia. Moscow is actively working to disrupt and dissolve NATO and one of its ploys is economic enticement of Germany.
Now Russian info-Ops will be actively seeking to promote hostility between Poland and Germany. To this end they unfortunately already have willing collaborators in both countries.
Poland will be the kick-ball. IMO we have blown it leaving the EU (really not going there) when we could have really have made something of it by using their talents. Again, not really going there