Google is so big a player that they don’t even need to check if the name has already been applied to a technology. As soon as they apply it to their product name, that will become the main association for the term. And as fond as some are of the Gemini protocol, it never got widely known outside of HN/Lobster circles.
It is on purpose to have an excuse of wiping out search results for interesting piece of technology. The same was with serverless which became "serverless".
- gemini protocol, the smolnet companion (gemini://geminiprotocol.net/ - https://geminiprotocol.net/)
- gemini somethingcoin somethingcrypto (I will never link it)
- gemini google's ML/AI (here we are)