No, California passed a Net Neutrality law, and it's easier for ISPs to be in compliance with it for the whole country than have different practices in every state.
I’m not sure this is universally true. Technically, phone companies violate net neutrality all the time by providing faster “lanes” for or access to certain streaming services (e.g. getting Paramount Plus or Peacock for “free” with your phone plan).
In most contracts the data used for the "special" apps do not count against your bandwidth plan. Here's a T-Mobile example that has several "special" services that don't add to your bandwidth.
There are multiple tiers of bandwidth I can get exclusively for video sites with my phone plan. non video sites aren’t throttled under any plan, but YouTube, Netflix, etc are depending on what tier you pay for. The people I know who pay for the top plans get access to the offered streaming service with priority bandwidth.