For M2 it has to be proven that Chauvin assaulted Floyd. It also must be proven that Chauvin caused the death (but not necessarily intentionally) of Floyd.Cause or contribute...what does the charge specify? Pretty sure it isn't cause.
For M3 it must be proven that Chauvin caused the death AND with depraved mind.
Reasonable doubt on all of that. The Jury got those two wrong. I mean, the Jury’s instructions were posted here. You could read them.