if Binance ever launched a game or a gambling casino, all of crypto industry will know about it because Binance is a really popular exchange and trust that such development won't be hidden from the public, since they will need the casino or game to be as popular as their exchange also.
Actually they did for Bplay and theres a lot of evidences for these partnership before but hence the playbread on the other hands is wasnt of a deal or collab.
Cause if Binance supported or got some partnership they at least share it or make some tweak about it whether on socials or maybe event place.