That's an awesome website, thanks for the pointer.

Forgive me for being a little dense but I just wanted to confirm something that I think this page is implying:

If you go to the above page, click "Generate Random" to generate a seed (private key), and then go to Keys and Addresses.

Then, keep checked ONLY the public key and address fields to make it easier to see. You see what looks like a regular bitcoin address (starts with bc1). And then left of it is the "public key".

But I'm used to thinking about "public key" meaning the xpub, for the private key, with which you can derive ALL the addresses.

So it looks like on this page, public key means something else, because it changes for each bitcoin address.

Maybe xpub stands for "expanded" public key, in the sense that it's the MASTER public key, from which you can derive everything else (everything that's public)?

I guess I should always say MASTER public key, instead of just public key?