chrome://settings/ai redirects to chrome://settings (general settings). Manually searching 'ai' brings up dozens of other settings - stuff like 'mail' (which contains 'ai' string) - but nothing Gemini-related.
On the most up to date chrome: Version 140.0.7339.186 (Official Build) (arm64)
The instructional video [0] says there should be a 'Gemini' icon on the top of the Chrome browser, but I don't have one (macOS). (do I have to have a paid Gemini account for it to be there?).
In any case, when OpenAI and Grok launch things, I usually just go and try them in about 20 seconds. By comparison Google's AI launches are tedious..
(thanks for the help btw)