Graphical glitches in Firefox with kernel 6.2-rc1 [RX580]

Brief summary of the problem:

After updating to kernel 6.2-rc1 in Fedora Rawhide, there are occasional graphics errors in the upper half of the display when browsing with Firefox. These relatively light glitches often resemble a checkerboard pattern and do not always occur. The system does not freeze or report any errors, it stays perfectly usable, even games work fine. When downgrading to kernel 6.1.0 the glitches disappear completely, and they can easily be reproduced by just booting the rc1 kernel again.

Hardware description:

• CPU: Ryzen 7700X
• GPU: 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] [1002:67df] (rev e7)
• System Memory: 32 GiB
• Display(s): 2x 4K@60Hz
• Type of Display Connection: DP

System information:

• Distro name and Version: Fedora Rawhide/38
• Kernel version: 6.2.0-0.rc1.14.fc38
• Custom kernel: N/A
• AMD official driver version: N/A

How to reproduce the issue:

• Boot Fedora Rawhide with 6.2-rc1 kernel
• Start Firefox and browse to e.g., https://www.rsync.net/products/borg.html, glitches usually start to appear after a few seconds there