It’s not uncommon to look at your examiners and feel overwhelmed.
They’ve read more. They’ve done more. They probably know more.
You’ve had a few years to learn how to do research and to write your thesis; they’ve had so much more time to get good.
Maybe you look at your examiners and strain your neck to see them on the pedestal you’ve made for them. How does that feel?
(probably not great)
It’s not unnatural to compare yourself to someone else, but it might be unhelpful. You can be aware of your examiners’ achievements, but it’s your choice to compare yourself to them. You don’t have to do that. You can choose to learn about their work and use that knowledge to help you prepare.
If you do make the comparison though, make sure it is fair. Yes, they probably know more about your field, have published more papers and will have questions you may have never considered before…
…but you wrote your thesis. They’ve only read it. Even if you’re in similar fields, they didn’t do YOUR work.
Compare total work in your field and they’ll always win: a more useful comparison is one that relates to how much more you necessarily know about your work than they do.
Seriously, how high is YOUR pedestal?