Relative to other countries, the US has much more competive industries and space for new entrants to grow. In Canada for instance many industries (banking, grocers, telecom, media, etc.) are each dominated by a handful of uncompetitive companies that exploit consumers.
To be clear I know that the US has this issue too to some extent, but it’s better there than elsewhere.
The extended support updates aren’t available to end consumers but is a paid product for enterprises that need more time to update.