Remove GarageBand update notice since I can't upgrade to Big Sur
My iMac (late 2013) just missed the Big Sur eligibility cutoff. The App Store application offers a GarageBand update, but when I try to install it, I get the error, "GarageBand can't be installed on "Macintosh HD" because macOS version 11 or later is required." Catch-22.
I want to eliminate the GB update from the number of available updates in the badge on the App Store icon in my dock. If that's the only update pending, there would be no badge on the App Store icon; if there is a GB update and another update pending, the badge would read "1", etc. I want to suppress the update notification for GarageBand only. I don't want to suppress all update notifications.
I have tried the "Hide Purchase..." option for GB in the App Store. This seems to have no effect. I have read lots of other potential solutions, but none seem to be able to hide updates for one application only. If anyone knows a way to do this, I'm all ears!
(P.S. to Apple: Really? It's bad enough I can't install Big Sur, but do you have to rub salt in the wound by teasing me with an app update I can't install?)
iMac 27″, macOS 10.15