Your system information

• Steam client version (build number or date): latest
• Distribution (e.g. Ubuntu): Fedora F39
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes
• Steam Logs: Logs dir not exist.
• GPU: AMD

Please describe your issue in as much detail as possible:

bin_steam.sh[2295]: Setting up Steam content in .local/share/Steam
steam.sh[2295]: Running Steam on fedora 39 64-bit
steam.sh[2295]: STEAM_RUNTIME is enabled automatically
setup.sh[2379]: Updating Steam runtime environment...
steam.sh[2295]: Can't find 'steam-runtime-check-requirements', continuing anyway
src/tier0/threadtools.cpp (2394) : Assertion Failed: Function not implemented
src/tier0/threadtools.cpp (2394) : Assertion Failed: Function not implemented
Installing breakpad exception handler for appid(steam)/version(1.0)/tid(13649)
assert_20231223170548_3.dmp[13652]: Uploading dump (out-of-process)
/tmp/dumps/assert_20231223170548_3.dmp
src/tier0/threadtools.cpp (1991) : Assertion Failed: semaphore creation failed Invalid argument
src/tier0/threadtools.cpp (1991) : Assertion Failed: semaphore creation failed Invalid argument
src/tier0/threadtools.cpp (2394) : Assertion Failed: Function not implemented
src/tier0/threadtools.cpp (2394) : Assertion Failed: Function not implemented
src/tier0/threadtools.cpp (1821) : Thread synchronization object is unuseable
src/tier0/threadtools.cpp (1821) : Thread synchronization object is unuseable
assert_20231223170548_3.dmp[13652]: Finished uploading minidump (out-of-process): success = yes
assert_20231223170548_3.dmp[13652]: response: CrashID=bp-27a81e9b-788a-4c04-b047-40eb42231223
assert_20231223170548_3.dmp[13652]: file ''/tmp/dumps/assert_20231223170548_3.dmp'', upload yes: ''CrashID=bp-27a81e9b-788a-4c04-b047-40eb42231223''

Steps for reproducing this issue:

Run Steam.