It’s pretty much just a couple of lines of dialogue in season 3 when they figure out how to use that communication network for a few episodes. [I am rewatching voyager now.] Janeway mulls over it for a bit and then it’s dropped by the end of the episode.
Oh, Mark comes up a few times. We eventually learn that he got married sometime after Starfleet gave up on Voyager being found.
I had a look at Memory Alpha and you are right, he is mentioned. Yet it was so forgettable that I removed it every time I rewatched the show
It’s pretty much just a couple of lines of dialogue in season 3 when they figure out how to use that communication network for a few episodes. [I am rewatching voyager now.] Janeway mulls over it for a bit and then it’s dropped by the end of the episode.