I've noticed many docs(like Mintlify) or AI products doesn't have "Open in Gemini" button. The reason is simple: gemini.google.com still doesn't support query parameters like q= or prompt=.
Of course, we can use Google search(or google.ai?q=), but it's just not the same for those of us who really cares about personalization.
If anyone works at Google or knows someone on the Gemini team, please fix this.