Wait for the process to reach 100%. You can now use this USB drive to boot and install macOS Catalina on any compatible Mac. To help you get exactly what you need, let me know:
Inside, double-click the .pkg file to install the "Install macOS Catalina.app" into your /Applications folder. download macos catalina 10157 dmg file hot
Choose the Install macOS Catalina.app directory from your Applications folder. Wait for the process to reach 100%
Open Terminal and run this command to allocate a blank 8.5GB disk image space on your desktop: let me know: Inside