I’m not sure if DuckDuckGo would look at a hyperlink protocol that had .ggl (google) in its lexicon and set out to compete, even if it was a completely open protocol, in the same way. Probably would look for a radically unaffiliated protocol or start out by creating one.
If Bing or DuckDuckGo were to launch a social indexing product, or twitter or meta looked to integrate and noticed that they would be indexing .Bsky.post links, that the name of the competing for-profit client/indexer/host was in the lexicon, they might then look to the the corporate structure, which is where a foundation(al) split would sooth any worry about the lexicon or name, and find something new a different. This could lead them to consider using Nostr instead, which is radically unaffiliated, similar thinking as to why David Markus is full on ln network now.