If you record an entire side of an LP at a time, you’re likely to want to subsequently divide the recording up into discrete tracks and to individually name each track. Audacity allows this to be achieved in a couple of different ways.
One method involves actually splitting the recording into multiple tracks, naming each track and subsequently exporting each track at a time.
Another allows you to mark the beginning of each track …
… and to export each of the identified segments …
… based on this labelling.