When running on the aarch64 version of Raspberry Pi OS, the script outputs Error: Not running Raspbian - this is because lsb_release -si returns Debian on this version.
This is by design. Anyway, this setup contains precompiled 32 bit executables which won't run on your system.
You have to follow the manual compile route.
When running on the aarch64 version of Raspberry Pi OS, the script outputs
Error: Not running Raspbian
- this is becauselsb_release -si
returnsDebian
on this version.