╭─tne@tne in ~
╰─λ ls -l /usr/bin/{garuda-,}update
.rwxr-xr-x 4,8k root 21 Jan 11:46 /usr/bin/garuda-update
lrwxrwxrwx 22 root 21 Jan 11:46 /usr/bin/update -> /usr/bin/garuda-update
They're the same thing
You can run either garuda-update or update. I prefer update cause it's shorter, but when showing people how to use a command, garuda-update may be less confusing to them.