Yes. The guix process builds binaries from `tag` anyway.

So basically, can I say a tag is just a release without the makeup, but the binary files are the same?

0xbitcoiner

bitcoin_beginners

What’s the difference between a release and a tag on GitHub?

A `tag` is a unique label to a commit on the `git` side of things.

A `release` is native functionality in `GitHub`, where you take a `tag` and you add further information to it, like release text/notes, a title, and optionally, binaries.

So first you tag in `git`, with `git tag`, then you push that tag to `GitHub`, then you write the release on GitHub (or via API). Also see [the release process doc](https://github.com/bitcoin/bitcoin/blob/master/doc/release-process.md) for Bitcoin Core specifically.