That's an invention by Sergey Lavrov. Of course Ukraine didn't ban the native language of 30% of it's population.

https://www.politifact.com/factchecks/2022/jun/08/sergey-lav...

> banned almost all political parties and organizations of russian-speaking people

Ukraine did in fact ban pro-Russian parties. While I must admit I don't particularly like the idea of banning any parties in a democracy, it is understandable why you would ban parties and organizations supporting the enemy while you are at war.

This is, however, a long shot from the claim the he banned almost all political parties and organizations of russian-speaking people.