Not been my experience at all, and I use both Windows and Linux laptops every day (lots of testing in my lab).

With some effort I can make Linux power management similar to Windows default (depending on the specific hardware and distro).

Unfortunately the latest hardware often doesn't support true S3 sleep, and depends on the OS to keep it quiescent, which is a whole bucket of a shit show regardless of the OS.

But then my use-case for each OS is different. I don't compare them because they're different tools.