It's funny to look back at Fox's late 2022 polls in PA and AZ, they showed similar issues to what we're looking at now. Fox's last PA poll had Fetterman only winning nonwhites 49-31, even worse than Biden here, and we know that's not the case.
The biggest thing for me is the party ID; Fox's last AZ poll had Kelly up 2 overall, winning Indies by 18.
Biden wins indies here by 14, so rather close. And they both got similar partisan support (Kelly a tiny bit more Rs but negligible), but b/c party ID so different, Kelly was up 2 overall, but Biden is down 4. That stuff does make a difference!
Also no wonder the 2020 polls were off so bad, the party IDs in the 2020 Fox polls for example by comparison were crazy. PA was like D+8, AZ was like D+3. No wonder they had Biden up a ton.
Fox last poll for the 2022 senate in PA had Fetterman +4. Oz never led one Fox News poll and neither did Blake Masters.