Yes, Rocket League Season 12 is indeed live on all systems. Rocket League is a popular vehicular soccer video game where players control cars to play soccer. It has its own competitive scene with regular seasons and tournaments.
As for "euro league" and "futbollibre online live," here's how they relate:
Euro League: This could refer to the UEFA Europa League or the EuroLeague in basketball. However, in the context of Rocket League, there isn't a direct correlation unless you're referring to European teams or players competing in Rocket League esports events.
Rocket League of FutbolLibre Online Live: "FutbolLibre" seems to be a term that could imply free or liberated football (soccer). If you're looking for online platforms to watch Rocket League esports live, you can typically find matches streamed on Twitch and occasionally on YouTube. Rocket League Championship Series (RLCS) is one of the major leagues where you can watch top teams compete.
If you meant something else by "euro league" or "futbollibre online live," please clarify, and I'd be happy to provide more specific information!