On my existing mac i usually reinstall or upgrade by downloading the OS and performing a clean install.
First we need to open AppStore to Download latest macOS Ex: macOS Ventura or Sonoma
Follow instructions given here: https://support.apple.com/en-us/HT201372
Primary command that you will need to run:
sudo /Applications/Install\ macOS\ Ventura.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
bash
Here MyVolume
is the USB Volume name, which needs to be changed to match yours.
Shutdown and Start your mac by holding the power button down (M1 style). Enter Disk Utility to Erase the disk, followed by reboot and install via USB.