Just read their privacy....
"Arc Max uses OpenAI’s API Platform and Anthropic’s Claude for commercial applications. These features are off by default in the desktop app and not available in the mobile app at this time."
which include in some cases: the whole content of website, URL, etc...
NO THANKS!
CALLING OUT TO INTEGRATE THOSE FEATURES WITH LLAMA2.0 LOCALLY WITHIN FOSS CHROMINUM/ FireFOX