Problems with visibility

My app has a list with produkts from a warehouse and a status of how many left.
I want a new list to show if a produkt is under a given limit, that i want to decide for each produkt.
I have try to make a proberty in my “Product” collection whith limit, and i also tried to make a new collection with limits and make relation to “produkts”. But the list dosent show the “under-limit-products” when i try to filter it…

Any chance you could grab a screen recording (I recommend Loom) to explain it with visuals? Showing your app and how you have your collections set up.