I phrased that badly! Turkish is fine!! Russian is more challenging.
The smaller Central Asia countries have quite a complex attitude towards Russia. They’re EX-SU but the culture/language represents a difficult time in their history. They’ve also seen Russian actions in Ukraine (recent issues escalated this) and in Nagorno-Karabakh as deeply problematic - they view it as interference in domestic issues of those countries. And they’re all very ‘young’ countries so they worry about their own stability - particularly those who are more autocratic (Turkmenistan) - and what Russia might do to undermine that.
There’s also the Afghanistan ‘problem’ where when Russia withdrew lots of Taliban fighters moved through CA towards Russia.
BUT they need Russia for trade and typically for access to the west (which up until recently had no interest in CA). So, they’re ‘pragmatic’ - they recognised they need a relationship with Russia (CSTO, trade etc), but they don’t want to be reminded of their ties hence why it’s better to speak Turkish, if you can! In some of the countries there’s been an active shift to try and stop Russian being the second language.
They won’t hate you if you speak Russian, but it won’t endear you. Much the same way speaking English is France never really helps!
Azerbaijan is incredible - really worth visiting. TBH the whole region is just fascinating - both for the people/culture but also the politics!