Google did this way back, sometime in 2016 IIRC, before they were blocked in Russia. I'm not really sure why they still keep going with this esp. since they still show the entirety of Donbas as Ukrainian, and it has been occupied for just as long as Crimea has been.
Yandex censorship around this is really amusing. They did indeed drop all mentions of countries and borders everywhere, for one thing. But also in Alice (their LLM chatbot), it's to the point where if you ask it to prepare a road trip from Sochi to Bucharest and describe the route in detail including which countries it passes through, it refuses to answer.