Here's a quick run-down.
"Qualified immunity" for excessive force complaints requires a plaintiff to prove two things: (1) that their constitutional rights were violated; and (2) that the defendant officer clearly violated established law. Element 2 is the difficult thing to prove because criminal law is evolving so fast that it even the best practitioners couldn't say with reasonable certainty that any act "clearly violates" established law.
"Qualified immunity" for other sort of torts requires a plaintiff to demonstrate that the defendant acted: (1) with hatred or ill-will; or (2) reckless disregard for the plaintiff's rights which had a great probability of causing substantial harm. This is the "malice" standard used for many torts.
So, what's the difference? Well, the first variety of qualified immunity doesn't inquire into an officer's intent, but it does require a plaintiff to make an argument based on existing law. In practice, a plaintiff's attorney has to allege facts to establish a "clear violation of established law," which is a lot more difficult that you'd expect. This is especially true if you are alleging a new set of facts that has never been seen by a court. After all, how can you violated "established law" if you have a scenario that is a matter of first impression? The second variety seems to be a lot harder because you have to establish the officer's mindset at the time of the illegal act. In practice, it is actually easier because a court can infer from allegations what a mindset might be.
Suppose we look at the Floyd situation, and we discover that there has been no cases before Washington courts where an officer knelt on the neck of an accused before. How can there be a clear violation of establish law? You'd have to find an analogous situation in Washington that somehow made it to a judgment. Given that many police departments settle this cases prior to judgment, it's unlikely that you'll find any such case. See the problem?
But take that same situation, state the known facts, and then argue that the officer acted "with reckless disregard for Floyd's life" by kneeling on his neck, "which has a great probability of doing substantial harm." There's almost no way to argue that this would not be the case, presuming the allegations to be true. The plaintiff would survive the motion to dismiss, which practically cuts out the immunity defense.