At my current company, I spent months being bullied and told to quit. I then found a much better position, quit and my last day is on Friday.
I can honestly say I prepared a very solid handover - including meetings and a long written documentation. I've been with the company for some time and no other person who left while I was here prepared even half of what I did. My handover is really super detailed. I also encouraged my coworkers for weeks to approach me with all questions they might have. I spend days explaining things to them.
Due to my contract, I only need to come to work for 2h on Friday. I have the impression my boss expects me to come for the whole day - obviously, the rest of time spent there wouldn't be paid for.
I know this is my last day and I should try to leave a good taste in the mouth, but I hate every second spent there and in the past when I worked unpaid overtime this didn't result in my boss being nicer to me at all. The opposite is true. I felt like an idiot afterward. I don't feel like being abused anymore.
How to react to my boss's negative reaction and pressure that I stay the whole day "to do handover"? I'm sure rational explanation that I've taken everything down and explained everything I could won't help.
EDIT: Of course I've informed myself about the formalities related to offboarding. They take 5 minutes and can be completed any time. My boss expects me to WORK during my last day. 8 h. And then to "do the handover".