It's not necessarily about having the latest chip tech from a consumer perspective but more about TSMC's business demand. Businesses like Apple are only signing

It's not necessarily about having the latest chip tech from a consumer perspective but more about TSMC's business demand. Businesses like Apple are only signing contracts for the best chip designs, and they are a massive customer for TSMC. Moving production to the US is great because it means apple has a more reliable supply source in the wake of increasing China/Taiwan tensions. It makes sense for TSMC as well because Apple and others were considering alternative manufactureres (Intel) in the wake of those political problems. But as for regular consumers, I think you're right. Most of us don't care whether we have a 10nm or 4nm chip in our devices, we just need good battery life.