I recommend the UG campus in Oliwa. Close to everything, easy access thanks to the SKM station and public transport stops. The learning itself is also fun. Professors have a rather modern approach to teaching. They know that they teach modern youth, which is why lectures often take the form of presentations or online assignments. Student life takes place more in the centre of Gdańsk, not on the campus or in its vicinity, but this is not a big disadvantage.