Your system information

• Steam client version (build number or date): Jun 7 2022, at 03:18:43
• Distribution (e.g. Ubuntu): Debian
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

statvfs64: ret -1 errno 13
  f_bsize : 0
  f_frsize: 0
  f_blocks: 0
  f_bfree : 0
  f_bavail: 0
src/tier1/fileio.cpp (3855) : Assertion Failed: statvfs64 failed for /boot/efi, errno 13
src/tier1/fileio.cpp (3855) : Assertion Failed: statvfs64 failed for /boot/efi, errno 13
Execute: /home/user/.steam/debian-installation/ubuntu12_64/disk-free /boot/efi >/tmp/disk-free.LDY4Sc
realpath errno 13
src/tier1/fileio.cpp (3886) : disk-free command failed

src/tier1/fileio.cpp (3886) : disk-free command failed

Couldn't write /boot/efi/.steam_exec_test.sh: Permission denied
Couldn't write /media/games_2/.steam_exec_test.sh: Permission denied
statvfs64: ret -1 errno 2
  f_bsize : 0
  f_frsize: 0
  f_blocks: 0
  f_bfree : 0
  f_bavail: 0
src/tier1/fileio.cpp (3855) : Assertion Failed: statvfs64 failed for /media/data, errno 2
src/tier1/fileio.cpp (3855) : Assertion Failed: statvfs64 failed for /media/data, errno 2
Execute: /home/user/.steam/debian-installation/ubuntu12_64/disk-free /media/data >/tmp/disk-free.UZii6g
realpath errno 2
src/tier1/fileio.cpp (3886) : disk-free command failed

src/tier1/fileio.cpp (3886) : disk-free command failed

Couldn't write /media/data/.steam_exec_test.sh: No such file or directory
Couldn't write /media/games_1/.steam_exec_test.sh: Permission denied
Couldn't write /etc/.steam_exec_test.sh: Permission denied
Couldn't write /etc/.steam_exec_test.sh: Permission denied
Couldn't write /var/.steam_exec_test.sh: Permission denied
Couldn't write /var/.steam_exec_test.sh: Permission denied
sh: 1: /home/user/.steam_exec_test.sh: Permission denied
Failed system("/home/user/.steam_exec_test.sh") in execute test: 32256

I have a Steam library at /media/games_1/SteamLibrary and /media/games_2/SteamLibrary.

Steps for reproducing this issue:

I noticed the console output after Independence War 2: Edge of Chaos crashed.

Steam was running through firejail.