President Dud may be many things, but he isn't Islamophobic.
Yes, there is a recently-opened Islamic Cultural center in Praha (or the district at the other side of the river, as you wish). It was funded with saudi money. And at least 3 hectares of trees were cutted to give space to it.
Just in case you wanna visit it, it is at Wiertnicza 103. Probably is one of (if not the biggest) religious building in Warsaw nowadays.
This is untrue. The mosque on Wiertnicza has been there for many years, the new cultural centre isn't in Praga and no trees were cut down. And the President of Poland, to bring it back to the thread topic has visited it as an honoured guest.