See this: https://news.ycombinator.com/item?id=44745897

TL;DR: Make sure Power Nap is turned ON. It allows macOS to consolidate wakeup requests into a bulk queue. So the thing isn't turning on all the time.

I read that. It contains no actual useful or authoritative explanation. It references Apple docs that sort of say that it's not supported on Apple Silicon. The man page says:

> powernap - enable/disable Power Nap on supported machines (value = 0/1)

Thanks, Apple.