I'm going to explain the decision based on how I understand them. Needless to say I don't agree with the rules.
Not checked.
Checked. Nothing given.
Kane one.
Impact of ball on hand is inside the line of the body. So defender not making himself bigger. No handball.
The Havertz one would have been given as handball last season, but with the complaints from last season the scrapped that rule. So it doesn't apply to attackers. We got fucked by that time with Lucas vs Sheffield United, Declan Rice v Sheffield United.