Removing AMP pages

I've had a website that uses AMP pages for about 2 years. Currently website speed without AMP is much faster and approved in web core vitals, while AMP pages are not approved in web core vitals.

If I disable AMP pages, ideally I should create a 301 redirect to the AMP pages?

Or do I just disable it and wait for Google to do the work?

You can 301 amp to non amp depending on your setup. AMP is junk anyway and slows down sites.

For AMP pages, if your main site is now faster, it's a good move to disable AMP. Definitely set up 301 redirects from the AMP URLs to the corresponding non-AMP pages. This helps preserve link equity and provides a better user experience by redirecting to the appropriate content.