University LoL teams

Would previous bans inhibit me from joining? Would they have to know? It's something I'm not proud of, and I'm almost to the finish line. 300 games and no punishment over three weeks. I'm a less toxic person than what I was when I received those bans. I'm also climbing hard after dropping the toxicity. Plat 3 with a 60% w/r. Most of all, I'm happy. It's easier to be toxic, but you win hell of a lot more games by not being.

Would Uni LoL teams, when I try out for them, request previous bans?