iOS: Install Apps you Want before Apple Bans them for Political Reasons
Apple still has intellectual property, which can be seized if need be. There's been talk of nationalizing Apple within Russia. So, if Apple is indeed semi-bricking iPhones in Russia: I think the Russian division of Apple can be compelled to un-brick them, even without the corporation of Apple at large.
AFAICT Apple is NOT doing anything like that. They've ceased sales of new Apple devices in Russia, i.e. they closed all the Apple Stores there. For existing Russian users of iPhones, iPads, Macs, etc. should go on working just fine. There's plenty of countries in the world where Apple has no official presence, but people have been able to obtain and use Apple devices, e.g. Mongolia.
Also there's US sanctions that prohibit the supplying of American technology and other business to Russia, which no doubt Apple is compying with:
US urges companies to comply with Russia-related sanctions
The U.S. government on Thursday called on companies to ensure they comply with Russia-related sanctions imposed after Moscow's invasion of Ukraine, warning that a failure to do so could lead to potential prosecution or enforcement actions.
