Is it appropriate to wear shorts or walk around beaches if you have hairy legs, as a man in Moscow?
As @HeidelBerGensis have said: "Unless you have gorilla level hairy legs" noone really cares.
But if there is still a question you can watch a few videos, like:
You can see a few guys wearing shorts.
I'd strengthen the point by Karlson and the comment by Willeke:
Not only does noone care if you have hairy legs, but in Russia, as a guy, you'd probably be getting odd looks and your sexuality would be questioned if you would be found to have shaved legs.