Probably "don't fuss about Fußball" for the same reasons, right?

I thought the German language deprecated the use of ß years ago, no? I learned German for a year and that's what the teacher told us, but maybe it's not the whole story

Incorrect. ẞ is still a thing.

Going by what you and the grandparent wrote, it's not just a thing, but two different things: ẞ ß

It is probably time for an Esperanto advocate to show up and set us all straight.

Pri kio vi parolas? En Esperanto, unu letero egalas unu sonon.

What are you talking about? In Esperanto, one letter equals one sound.

> set us all straight.

Se fareblus oni, jam farintus oni. (It definitely won't happen on an echo-change day like today, either. ;))

Contra my comrade's comment, Esperanto orthography is firmly European, and so retains European-style casing distinctions; every sound thus still has two letters -- or at least two codepoints.

(There aren't any eszettesque bigraphs, but that's not saying much.)

Germans run Uber Long Term Support dialects

The Swiss have dropped ß, but it's still a thing in Germany or Austria.