I recently made a post discussing my move to Linux on Fedora, and it's been going great. But today I think I have now become truly part of this community. I ran a command that borked my bootloader and had to do a fresh install. Learned my lesson with modifying the bootloader without first doing thorough investigation lol.
Fortunately I kept my /home on its own partition, so this shouldn't be too bad to get back up and running as desired.
Before you can fix a bootloader, you first need to learn how to install and set up a bootloader. I think most people learn that part when they try Arch