Wow, they just changed it so you can only use Plugins with ChatGPT 4 which is limited (25 messages/3 hours). I'm looking forward to finally getting code/browser but it's really shitty that they just dropped plugins from 3.5 (which had unlimited usage).
As a paying customer I feel like they keep moving the goalposts and are really bad at communicating. Their blog post about code/browser /never/ mentioned it was only for certain users and it was near-impossible to find anything official about it. That plus them changing the wording about ChatGPT 4 (at first they made it sound like the limits were temporary).