Just checked my laptop and my Install macOS Mojave, in the Applications folder (it's normal location) is 6.03gb. But I've never tried to upgrade it via the app store. So I checked two other of my machines and also have it in the Applications folder but with different mod dates, presumably when they were downloaded. Checked a couple of customer machines and it's the same thing, full installer already in the app folder.
other than the app store, where are you downloading it? I feel like I am missing something.
wowI guess I was not clear enough. I did nothing at all other than have machines turned on, connected to the Internet with a valid App Store account logged in. This is the first time I've seen an OS upgrade automagically get downloaded and I'm not happy about that. I don't consider an OS upgrade to be part of the regular maintenance of the existing version of OS. As @timeshifter pointed out there are ways to get these. There's always someone somewhere with too much time on their hands.
@Markverhyden it just showed up for me also
I had a client who asked me, as I was finishing up my visit, for "one last thing" - turn off those Mojave notifications. I did a quick Google search and came up with this link with a solution. Read it and told her she's just going to have to put up with clicking "not now".Showing up for me as well, yet again. So annoying I can't kill the upgrade message.