It does some weird formatting to the usb stick. You literally have to use their tool to unformat it again otherwise it’s screwed. That’s been my experience.
I had an issue on my MacBook bios safety installing Fedora. Wouldn’t boot and even if I tried installing Ubuntu over it, still would not boot.
Had to reinstall Mac OS and have it repair the bios. Only after that could I get Linux installed and booting again.