Docs: Does Edge Runtime support `Buffer`?

What is the documentation issue?

https://nextjs.org/docs/pages/api-reference/edge
According to the Edge Runtime documentation, Buffer is not listed in the supported APIs.
However, based on our testing, Buffer appears to　be supported and works without errors.

Is there any context that might help us understand?

I'm using Next.js v15.x and Pages Router.

I tried to implement Content Security Policy (CSP).
So I added the nonce by following the document:
https://nextjs.org/docs/15/pages/guides/content-security-policy#nonces

In the sample code, it uses Buffer.

const nonce = Buffer.from(crypto.randomUUID()).toString('base64')

But in the document about middleware, "Middleware defaults to using the Edge runtime".
https://nextjs.org/docs/15/app/api-reference/file-conventions/middleware#runtime

And I couldn't find Buffer in the supported APIs
https://nextjs.org/docs/pages/api-reference/edge

However, as long as I deployed and tested, it worked without errors.
Does it mean I can use Buffer in Edge Runtime?

Does the docs page already exist? Please link to it.

https://nextjs.org/docs/pages/api-reference/edge