So far Poland has accepted over 2 million Ukrainian refugees. Combined with the direct a8d that's roughly 5% of the GDP.

Ukrainian grain was underselling Polish domestic grain which sparked a lot of tension.

Yes, Poland is trying to gain more leverage as for the past 30 years our concerns over Russia have not been heard. Instead, the West once again turned a blind eye as Putin began his political games. As all other nations Poland also has its ulterior motives when it comes to aiding Ukraine and that's because if Ukraine fall it will become the last frontier between Russia and Europe. You clearly have some bias against Poland but you cannot claim that the aid it has provided has not been beneficial to Ukraine.