GarageBand 10.3.5 represents a sweet spot for many musicians. While newer versions (10.4.x) focus heavily on beat-making with Live Loops, version 10.3.5 is revered for its stability, lower CPU usage, and classic linear recording workflow.
Create a new Apple ID? It won't work. You need an Apple ID that downloaded GarageBand in 2019 or 2020. If you don't have one, borrow a friend's ID for the download (you can sign out after). -LINK- Download Garageband 10.3.5
A notification popped up in the corner of the bruised purple screen: GarageBand 10
If you try to download GarageBand from a fresh Apple ID, the App Store will give you version 10.4.6 or higher. To get 10.3.5, you need to follow the "Last Compatible Version" rule. It won't work
Five authentic Mellotron patches and realistic "Drummers" with brush styles. How to Download the 10.3.5 Version