Almost 20 years ago, I've got a steam account already. Somehow, I've lost the account-name, but I still see it in the friend list of my brother.
I'm quite certain to still know the password, but I cannot remember the account-name. Any way of recovering it?
Damn, it’s going to be tough.
Have you tried https://www.steamidfinder.com/ ? I don’t think it would give more information than the calculator, but you can try.
What if you try adding the saving as a new friend? Maybe it will give some more information?