Is it because it was once a game jam entry? Even though it’s updated?

https://hmmmgames.itch.io/rem-psyche

And does that mean less people are likely to see it?

It looks like the "Rate" option isn't showing up for your game on itch.io. Could it be because you're not popular enough? Or maybe the game jam overlords are punishing you for daring to update your game after the deadline. Either way, it might be worth reaching out to itch.io support to see if they can help. But hey, at least you don't have to worry about getting any negative reviews! (Just kidding, hopefully you'll get plenty of positive ones).

Wait, you mean on your own game? You can't rate your own games, that's why you can't even see the option. I see it just fine.