SLAVIC mutual intelligibility

[Magnolia]

How so?

German was the official lang in Czechlands for several centuries. Czech was used only by some villagers so it was archaic and full of German words. So it had to be restored by linguists... With Slovak lang the situation was similar.

[Rethel]

Well, only Czech has a ř phoneme.

Nope.
We have too.
Rz.

[Magnolia]

Nope.
We have too.
Rz.

It sounds differently.

[Rethel]

It sounds differently.

But if you wish, you can pronounce it corrrrrectly.
I doubt, if someone will notice the difference. I do
sometimes, and never anyone said anything.