From the article in the OP:
"But the Russian human rights group Gulagu, who helped Mr Medvedev leave Russia, confirmed his identity. His escape is believed to be the first known instance of one of the group's soldiers defecting to the West.
Gulagu's founder Vladimir Osechkin told the BBC that Mr Medvedev had joined the paramilitary group in July 2022 on a four-month contract, but had deserted after witnessing a host of human rights abuses and war crimes while serving in Ukraine."
I can think of a number of countries that would be interested in providing accommodation to him in exchange for a chat.