I'm pretty sure he's staying quiet as fuck because he doesn't want to come to any public attention and get deported from Russia. Which would mean he would end up on a one way trip for life to ADX Florence. I haven't seen anything out of him since 2022 on the topic of the russia/ukraine war for instance.

Edit: If I would have to guess, he has some form of Russian intelligence minders who are responsible for oversight of him and his lifestyle and public profile (the russians aren't stupid, of course they have such people), and he has specifically told them he's going to remain completely quiet on everything political and make no further public statements of any sort