For what it's worth @AnoionTheAppilius with a fresh install of Orion on iOS 26 and iPadOS 18.5 after updating the list using only default EasyList and EasyPrivacy selected the results improve.
This may be #11187 again as I had reported previously.
@laiz I just installed Orion fresh on an iPad and I noticed the content blocker list was also from "2024-12-09, 4:00 PM" and did not auto-update on launch. If I manually update the list, it takes about 60 seconds and then updates.