Look for the option when installing that is along the lines of “wipe entire drive.”
If you want Debian, check out Vanilla OS. They reached a milestone not too long ago, and it’s a bulletproof distro. It containerizes most programs, it’s immutable, and has atomic updates.
Someone already mentioned, turn off secure boot in your BIOS/uefi settings.
This also handles the device settings and open-razer driver, it’s more than just RBG control. I use it to set polling rate and DPI, my mouse doesn’t have rbg, either.