Your thesis is not written for your examiners. You have to write it for your PhD and your examiners have to read it to examine you. It’s not written for them – the goal is to make a contribution to knowledge.
You don’t learn about viva expectations so you have a template you’re trying to complete. You’re learning more so that you can prepare well. You’re not trying to meet some ideal for your examiners.
Your prep is not done for your examiners. It’s for you. You want to be at your best, ready, refreshed, feeling confident – but that’s not for them. You want to to feel ready for you.
Remember to keep the focus where it needs to be for the viva.