Sanctions just slightly increase the cost of obtaining an item, but don't make it impossible. Electronic components can be bought, oil can be sold, ChatGPT can be used via OpenRouter, sanctioned banks publish their apps under guise into App Store, etc. When there are 200 countries in the world, and money involved, you can get anything.
Sanctioned goods could be used to spread propaganda though, imagine, for example, if installing a NVIDIA GPU driver required answering questions about Tiananmen square incident.
Sanctioned goods could be used to spread propaganda though, imagine, for example, if installing a NVIDIA GPU driver required answering questions about Tiananmen square incident.