Unfortunately Fedora still is not supporting the Raspberry Pi 4 very well (no accelerated graphics); however, there is a project on rpmfusion that links Fedora with the kernel from the Pi foundation.
This means that you get the Fedora 34 desktop with full video driver (v34/vc3 accelerated) support!!
I suppose it’s just a matter of time until the changes done to the kernel by raspberry folks being upstreamed to linux proper, then fedora’s default kernel will support raspberry 4 out of the box.