Hello @NonMeme, Steam should be calling xdg-open with the folder location to let the file manager of your choice open up. This issue is something configured outside of Steam and happens to have been left in a broken state. The terminal spew hints towards xdg-open getting handed off to a wslu utility and falling over.
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
I cannot browse local files from native Steam client. Flatpak Steam can do it. I get errors when opening Steam with terminal to look when attempting to do it that are variations of
[error] This protocol is not supported before version 1903.
grep: /proc/sys/fs/binfmt_misc/WSLInterop: No such file or directory
WSL Interopability is disabled. Please enable it before using WSL.
grep: /proc/sys/fs/binfmt_misc/WSLInterop: No such file or directory
[error] WSL Interoperability is disabled. Please enable it before using WSL.
/usr/bin/wslview: line 216: /mnt/c/Windows/System32/reg.exe: No such file or directory
/usr/bin/wslview: line 308: [: -ge: unary operator expected
[error] This protocol is not supported before version 1903.
Steps for reproducing this issue: