When making a macOS USB Installer for a Hackintosh, most people will dump everything into one partition. I try to avoid this since I may need to use it on Apple hardware and update as Apple releases patches and features during the years it is supported. Below, you will see that you can fit up to 16 partitions on a USB macOS Installer should the media size exceed 120 GB
Partition Requirement
08 GB: Snow Leopard
08 GB: Lion
10 GB: Mountain Lion
08 GB: Mavericks
08 GB: Yosemite
08 GB: El Capitan
08 GB: Sierra
08 GB: High Sierra
08 GB: Mojave
10 GB: Catalina
14 GB: Big Sur
15 GB: Monterey *
* Current supported OS that may increase with by security updates and features.
Watch on YouTube
00:00 – Disk Utility
00:05 – View by disk
00:18 – View by partition