Created Fedora 34 Gnome 40 bootable persistent Live USB and running it.

I wanted to try Gnome 40 and found that newest version of Fedora 32 Workstation has Gnome 40.

I downloaded the iso.

Checked sha256sum found ok.

In order to make persistent Live USB I downloaded

livecd-iso-to-disk script

made the script executable and kept it in the same folder as the iso

sudo ./livecd-iso-to-disk --overlay-size-mb 2048 Fedora-Workstation-Live-x86_64-34-1.2.iso /dev/sdb1

to make Live USB with 2 GB for persistence.

It took lot of time:

Copying LiveOS image to target device...
squashfs.img
  1,896,591,360 100%    1.43MB/s    0:21:03 (xfr#1, to-chk=0/1)

Syncing filesystem writes to disc.
    Please wait, this may take a while...
Setting up /EFI/BOOT
Copying /images directory to the target device.
efiboot.img
     10,430,464 100%   70.83MB/s    0:00:00 (xfr#1, to-chk=0/1)
macboot.img
     21,938,176 100%   77.37MB/s    0:00:00 (xfr#1, to-chk=0/1)
initrd.img
     56,824,284 100%   11.06MB/s    0:00:04 (xfr#1, to-chk=0/1)
vmlinuz
     10,580,240 100%   30.12MB/s    0:00:00 (xfr#1, to-chk=0/1)
Updating boot config files.
Initializing persistent overlay...
2048+0 records in
2048+0 records out
2147483648 bytes (2.1 GB, 2.0 GiB) copied, 2250.09 s, 954 kB/s
Installing boot loader...

        ATTENTION:
        Failed to find /usr/share/syslinux/ldlinux.c32.
        The installed device may not boot.
                Press Enter to continue, or Ctrl C to abort.


        ATTENTION:
        Failed to find /usr/share/syslinux/libcom32.c32.
        The installed device may not boot.
                Press Enter to continue, or Ctrl C to abort.


        ATTENTION:
        Failed to find /usr/share/syslinux/libutil.c32.
        The installed device may not boot.
                Press Enter to continue, or Ctrl C to abort.

Target device is now set up with a Live image!

I changed BIOS Boot to Boot from USB and here is Gnome 40 Desktop: