Don't ever do this on a current bare metal system!
Even if you have everything backed up, plan on re-installing anyway, and just want to see what happens.
On a modern EFI system, recursively deleting everything (including the EFI path) has a chance of permanently hard-bricking your computer!
The CLI has worked great for fifty years and it'll work great for another fifty years.
Fifty years from then? Well, I don't know, it'll probably be nuclear winter and the climate wars. But hey, I'm not going to be here, so until then it's the CLI for me