Question about UniFi Flex XG - 524174

Hello all, I have a Dream Machine Pro SE and would like to connect this switch to it. The PS5, a PC and AP U6 Pro will then be connected to it. My question now: Can I also give the uplink e.g. to one of the four 10Gbit ports and leave the POE empty? I want maximum speed and have read that the POE port only has 1Gbit.