I noticed recently that there are new "AI Widget" and "Chat Widget" EasyList filters in the uBlock Origin Annoyances filter lists. I'm not sure when they were added but they weren't checked by default for me. They definitely help clear some of the clutter.
Install Chrome update. Network usage goes off the charts. Close Chrome it goes away. Check task manager. No processes claim the downloads. Use firefox to search around for why.
Apparently "on-device AI models" are a thing. And are downloaded separately after the install of Chrome.
