Fast refresh disabled warning with react experimental version

[timneutkens]

Error: https://github.com/vercel/next.js/blob/master/errors/react-version.md
Any way I can enable fast refresh?

Originally posted by @searchableguy in #16100

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This is caused by our check for React lower than 16.10 which seems to catch the experimental React version as well. This is just a warning and does not actually "disable" Fast Refresh.