About using elements as anchors for searches in order to not have multiple time the same search: I also do the same however according to Bubble’s documentation, they should already take care of this in their own app optimisation.

Doc : Performance | Bubble Docs

  • If a page has the same search in more than one place, Bubble will automatically combine them to run the query once

One day I’d love to take the time to dig this and make some performances comparissons and reserches.