That being said, whether it is open on a particular sailing is definitely up in the air. Apparently, Vibe was closed on the cruise before ours. I heard conflicting reasons for its closure: one.
The first was that a counselor tested positive,
The second was that the clubs were short-staffed, so they moved the vibe counselors to the club and lab to keep it open. I can attest to the short-staffed clubs as I know the Vibe only had 3 counselors when it usually has 7 or even 8.
I don't know which one is true, but the moral of the story is that there's a lot of variation between cruises and what was true one sailing might not be the next. But I am near 100% certain that BBB was open for our sailing on the Fantasy.