[windowsrookie]

You can disable "Wake for Network Access" in the battery settings if you want. It's a convenience option that lets MacOS check for new iMessages and other updates while it's asleep. That way all your messages are loaded immediately when you wake the device.

[just6979]

Do they have network performance problems such that messages need to be preloaded? Can't just fetch the new ones at wake up? That is a solution in search of a problem. I go from phone to laptop/desktop and continue messaging on various services all the time, and none of them sync until wake up and that's perfectly fine.

[LtWorf]

I presume apple wants to collect the data.

[LtWorf]

I didn't even set it up with an apple account and thus I cannot possibly get any messages from iMessages.