Is there a way to come some things on th emap hidden from only certian players?

My question is just the title. Basically, I'm running a session where the players might be working agaisnt each other, and I want to hide them from each other if that makes sense?

If you want to keep them from being visible to each other that can not be done on the same map. You can multi-link into roll20 as long as you only have one account active per browser. I would open a second link into the game, set up two copies of the same map, each in a different tab in your browser then place one group on map 1, the other on map 2 and tab between them to ref each team. If the groups end up in the same area you could move them all to one map to interact.

It sounds like you really need to move up to at least Plus - with dynamic lighting and LOS enforced, players can only see each others tokens when they have LOS and sufficient light, same as any other token.