Were all the drones found in Poland gereba decoy drones?
That particular drone is made up of plywood with a polystyrene core and does not contain explosives but is designed to waste the expensive air defences of the Ukrainians.
These often run out of power and crash land relatively unscathed due to their light weight and minimal construction.
It would be very simple for the Ukrainians to get them back to work and use them in a false flag operation to provoke a NATO response.
I wouldn't trust the Polish about this either as they are looking for reasons to try to scupper Trump's attempts to make a deal with the Russians.
Apparently the Russians are requesting serial numbers from the crashed drones to confirm when they were launched. Let's see if the Poles will be obliging