This is exactly my observation. Every now and then there's an Anglo posting on Polish social media asking people questions about some obscure Catholic doctrines and getting offended after they're told that no one there cares. I guess that such people see the number "98% Catholic" on the page for Poland on Wikipedia and conclude that it must be some medieval tradcath white nationalist theocracy.

I am deeply skeptical of all converts to Catholicism and I speculate that the alt-right spaces online painted a picture of conversion as going back to the foundation of the Western civilization, or at least its idealized white nationalist picture.