As stated in the wiki, #Fedora is still not officially supported on the #Raspberry Pi 4.

However you can install it, and it somehow works.

sudo arm-image-installer --image=Fedora-Minimal-33-1.3.aarch64.raw.xz --media=/dev/mmcblk0 --resizefs --target=rpi4

HDMI works, but I didn't test any DE, I used only the terminal.

WiFi seems to work pretty well.

All the 8GB of RAM are visible.

All the four CPU cores are visible.

$ lscpu
CPU(s):                          4
On-line CPU(s) list:             0-3
Thread(s) per core:              1
Core(s) per socket:              4
CPU max MHz:                     1500.0000
CPU min MHz:                     600.0000

I inserted an USB stick in the USB3 port, and I can mount and work on it.

$ lsusb
Bus 002 Device 004: ID 0781:5591 SanDisk Corp. Ultra Flair
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Serial console works.

Overall performance is pretty good. Compared to a #RPi 3, the RPi 4 is far more fast.

Encountered issues

Boot without an attached display doesn't work

Add hdmi_force_hotplug=1 to /boot/efi/config.txt

Install ethtool and issue

ethtool -s eth0 autoneg off speed 100 duplex full