To a large extent, life in Poland seems to have come back to normal. Schools, shops, cinemas, theaters, hotels, restaurants and cafes are open. More and more people are getting vaccinated. Overall, the numbers of new cases are low. On July 16, there have been only 93 new confirmed cases in Poland.
Of course, some restrictions still apply. There are limits on the number of people in cinemas, theaters, museums, at weddings etc., although those limits are not applicable to vaccinated people. Mask-wearing is mandatory in closed spaces. A full and up-to-date list of temporary restrictions and limitations can be found here