Originally Posted by artie505
I feel that way about Sparkle, but not, recently, anyhow, Software Update.

How do you deal with the App Store?

First, start from here:

https://apps.apple.com/us/app/macos-big-sur/id1526878132?ls=1&mt=12

Then, click on "Open App Store". A screen will appear containing Big Sur, along with the Get button. Just click on the Get button, and that full installation file (the latest non-beta one) will be downloaded to your Applications folder. You'll most likely be then shown a screen to start the installation. Exit out of that. Then, copy that Installer file to another location on your machine, after which you should delete the one inside your applications folder (to, obviously, save space). The reason for copying it to another location is when you launch it form there, it will not get deleted, and hence you don't need to download it again.