Only to show up years later back as a Traveler in Picard season 2 and Prodigy season 2... but not in Picard season 3 to help his previously unknown brother.

If he’s with the traveler, couldn’t he theoretically just come and go traveling space and time? He could technically just be at any point in any movie / episode?

Uh, something about non-interference in the timey whimey.

I guess it was decided that they didn't need traveller help in season 3 since they got Data back?

He was busy dealing with the TVA’s Daleks with Janeway…

She really is the greatest threat to the multiverse. Good for her.

and he wasnt a significant part of the story, just as a stand in for the poor writing of Picard, like had "powers" allegedly and they just omitted it.

Remember when Wesley was able to stop time and... nope?

I don't know, I just don't get the whole "Traveler" thing.

Which is funny because in Prodigy Janeway actually lambasts Wesley for not visiting his mother more often and so in probably her and his brothers greatest time of need he just....doesn't bother showing up?

so lore wise apparently at some point he left the travelers and rejoined starfleet thus Nemesis. Then like according to either Picard or Prodigy he then left starfleet again and went back with the travelers. Janeway even tells Wesley he needs to visit and be with his mother more often so he takes that advice from the Admiral and just...doesn't bother helping out in his mothers greatest time of need. I mean he even meets Jack in Prodigy and just, apparently, couldn't care less.

kurtzman is so horrible as a showrunner for nutrek live action, he mostly ignored any kind of continuity for the most part. and allowed a voy characther to be killed of just because of a disagreement with the network,. he only did ok in animated series which is better. but with ellison in control of Paramount, people really should rethink if they continue supporting nutrek. also will wheaton likely has problems with coming back anyways, because he was a forced child actor.

its not like KURTZMAN is going to follow continuity, he said it himself.