Short tips&hints additional.
To check and download available macos x distribution you can use softwareupdate command
list available images:
softwareupdate --list-full-installers
download selected image:
softwareupdate --fetch-full-installer --full-installer-version 15.0.1
To make bootable flash disk:
/Applications/Install\ macOS\ xxxxx.app/Contents/Resources/createinstallmedia --volume /Volumes/YYYY
where xxxxx - macos system code name (i.e. Sequoia / Sonoma / Ventura / etc) and YYYYY - you flash drive current name
You must have root privileges to run this command.