Unfortunately, I don’t see anything in the logs that points to the origin of the problem. However, given the last log entry (which is not an error), I found another present issue:
https://forum.manjaro.org/t/computer-wont-wake-after-sleep/81628/3
Related, recent issues here in ask Fedora:
https://discussion.fedoraproject.org/t/suspend-wake-with-hdmi-external-monitor-causing-shell-crashing-reboot/73552/5
https://discussion.fedoraproject.org/t/suspend-exits-immediately-after-5-15-update-and-new-ssd/18872
This seems to be a kernel issue in conjunction with some hardware. Maybe the coming kernel updates will fix it. At the worst, do not use the function until the next kernel update and then try it again.
Another thing you can try is, if you have a proprietary graphics driver, deactivate it and check whether the problem persists with the default driver.
For one person it seems to be even the opposite: Joel switched from the default driver to the proprietary NVIDIA one and it worked for him (even if his problem is not the exact same, it could be a different manifestation of the same issue). So, this could be tried as well if proprietary drivers are an option for you.
By the way, are you still able to enter a terminal with STRG+ALT+F4 ?