In that way PiS did A LOT as they changed (without bigger thought) personal tax system making year with changes like a ride on roller coaster. I just prefer “not doing shit” then. But PO did a lot of things during their time, and most important - the state of economy was good.
Also they did few unpopular decisions and, even being young (so most affected) - change of retirement age was really good and still needed. We’re aging society, we live longer than current age was set, etc.