It's a horrendous bill. First off, chokeholds are already "banned." And of course a chokehold was not used to kill Floyd. Like any type of deadly force, they can only be used in dire situations of life or death (like the officer using his gun for example).
Second, Qualified Immunity only helps a LEO if he is doing something under the color of law. In short it means that Officer X was doing ______, which is legal and within his departments regulations, and he was doing so under the authority of his badge as a police officer. That means if what you are doing is illegal or not within your regulations or if your act had nothing to do with the commission of your duties then Qualified Immunity would not apply.
So there's no reason to attack Qualified Immunity. That simply protects LEO'S who are doing their job lawfully. If Qualified Immunity is taken away, a LEO can be sued, personally, for legally doing his job.
BTW, judges and DA's have Unqualified Immunity. That means that they cannot be sued, period. Interesting that people would go after our Qualified Immunity but not a judges or DA's Unqualified Immunity. Hmmmm....