There is no special legal status attached to that.

Actual electronic signatures recognized by law are not based on GPG.

Isn't that a page from Germany?

Using your eID?

Do you know this or do you assume this?

Yes, my statements are about the legal reality I Germany.

GPG signatures convey no special legal status above regular email even if the key is signed by a government-owned company that verified your eID.

I read it differently.

But let's see how it is currently reading this can become the defacto standard.

And technically it's a good workflow/choice

That service is not new. And nobody seriously considers adopting GPG for that, as it's has serious design flaws.

What design flaw?

My mother would not be able to keep her private key secure.

But that's not the point.

This would even allow companies to offer this for you because the only interface necessary is the key