Does anyone actually trade BTC dominance, or is it just a vibe indicator?

Every cycle people point at BTC dominance to call alt season dominance drops, money's rotating into alts, etc. But every time I try to actually ACT on it, the signal feels too slow or too noisy to do anything useful with.

Feels like one of those metrics everyone watches but nobody (i know atleast) really trades. Like it describes what already happened more than it tells you what's next.

Anyone here actually use dominance in a concrete way, or is it more of a background "vibe check" for you?