Poland is a tougher nut than Ukraine. But the Kalingrad cauldron is going to split polish forces.
Poland is half of Ukraine military, probably more competent but smaller and poorer equipped, especially when it comes to air and AD. Also I don’t think that Putin is going to show restraint regarding collateral damage you can see in Ukraine currently.
” But the Kalingrad cauldron is going to split polish forces.”
Kaliningrad is Putin’s ace in the hole.