Seems doubtful. The utilisation will be super high for data center silicon whereas your PC or phone at home is mostly idle.

> your PC or phone at home is mostly idle

If you're purely repurposing hardware that you need anyway for other uses, that doesn't really matter.

(Besides, for that matter, your utilization might actually rise if you're making do with potato-class hardware that can only achieve low throughput and high latency. You'd be running inference in the background, basically at all times.)