To create a Live USB Fedora Linux media on macOS, you will need a USB drive with at least 4 GB of space and a copy of the Fedora Linux ISO image. You can download the Fedora Linux ISO image from the official Fedora website at https://getfedora.org/.
Once you have the ISO image and the USB drive, you can use the following steps to create the Live USB media:
Insert the USB drive into your Mac.
Open the Terminal application by going to Applications > Utilities > Terminal.
Use the diskutil list command to find the device identifier of the USB drive. It should be listed as /dev/diskX, where X is a number.
Use the diskutil unmountDisk command to unmount the USB drive. For example:
diskutil unmountDisk /dev/diskX
sudo dd if=path/to/fedora.iso of=/dev/diskX bs=1m
Wait for the dd command to complete. This may take a few minutes depending on the size of the ISO image and the speed of your USB drive.
Once the dd command is complete, you can eject the USB drive and use it to boot into Fedora Linux on any compatible computer. To boot from the USB drive, you may need to enter the BIOS or UEFI settings on the target computer and change the boot order to boot from USB first.