Then probably 100% of Poles have some Germanic admixture.
As for patrilineage - for example my surname is Slavic, but I have a Non-Slavic Y-DNA (R1b-L617), which must be a leftover from Iron Age inhabitants. It has nothing to do with Germans (Deutsche).
R1b-L617 is not even common in Germany, but more to the west:
https://www.theapricity.com/forum/sh...-Map-of-R-L617
On the other hand, my mother's surname is of Germanic origin.

