I already reported this in the private forum, but I was asked to post the bug report here.
The bug is the native Shop App and Minis useProductSearch API returns different results for the same query and filters (2025-12-03).
This is preventing our Minis to be approved because the Shopify Validation team notices this and claims it is a problem; however, it is purely an API search that works differently, hence out of our control.
Example search query: beauty gift partner with price filter range: 100-1000
native Shop App: ~500 products returned
Minis via useProductSearch: ~ only 2 products returned