4. Can a foreigner who is in the process of granting a temporary residence and work permit work while awaiting the decision of the Voivodeship Office?

Yes, if:

is exempt from the obligation to have a work permit;
has a work permit and submitted the residence application on time, it did not contain formal defects or it was supplemented on time, the Voivode placed a stamp in the foreigner’s passport confirming the submission of the residence application, and the foreigner’s stay is considered legal from the date of submission of the residence application to the date, in which the decision on granting a temporary residence and work permit will become final, if immediately before submitting the application, he/she was entitled to work in the territory of the Republic of Poland;
has a declaration on entrusting work to a foreigner while awaiting the issuance of a temporary residence and work permit.