resolves yes

Morawiecki was not yet sworn as a PM by the president, only designated:

https://dziennikustaw.gov.pl/M2023000122201.pdf

From constitution:

The President of the Republic of Poland designates the Prime Minister, who proposes the composition of the Council of Ministers. The President of the Republic of Poland appoints the Prime Minister together with the other members of the Council of Ministers within 14 days from the date of the first sitting of the Sejm or the acceptance of the resignation of the previous Council of Ministers and takes the oath from the members of the newly appointed Council of Ministers.

The Prime Minister, within 14 days from the date of appointment by the President of the Republic of Poland, presents to the Sejm the program of activities of the Council of Ministers with a request for a vote of confidence. The Sejm passes a vote of confidence by an absolute majority of votes in the presence of at least half of the statutory number of Deputies.

Morawiecki has overall 28 days for the confidence vote and likely no reason to shorten this time span. Until 11 Dec that is.

Does it count if Morawiecki is just acting prime minister (after first new Sejm meeting but before confidence vote passes)?

@glassbottle The Prime Minister take on his duties from the moment they take the oath before the President, regardless of the vote of confidence, so in this case it would resolve to the new PM (unless it's again Morawiecki)