Lol it has nothing to do with business model but everything to do with US sanctions.
Huawei has restricted access to Google services and the most advanced chips.
For many people outside of China, access to Google services is a deal breaker. And without access to the most advanced chips, customers will have to pay higher prices for lower performances.
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Look at how Huawei has basically disappeared after 2020, with Xiaomi/Vivo filling up its shoes.
Huawei has no competitive advantage outside of China. Only in China Huawei is still holding up pretty well due to patriotism.