It looks like you're running into an issue where wine fails with a Value too large for defined data type error when using the specified WINEPREFIX. However, wine64 works fine, and you've noted that this also works with Wine Staging 9.12.

Here are a few things you might try to troubleshoot and potentially resolve the issue:

1. Check Filesystem Limits

The error you're seeing might be related to filesystem limitations. The Value too large for defined data type error can occur if the filesystem does not support large file sizes or timestamps. Ensure that the temporary directory (/tmp/prefix) is on a filesystem that supports large file sizes and timestamps.

2. Try a Different Temporary Directory

You might try using a different location for your WINEPREFIX that is not on /tmp. Sometimes, /tmp might be on a filesystem with restrictions. For example:

export WINEPREFIX=$HOME/.wine_temp
wineboot
touch -d '2039-02-28 16:21:42' $WINEPREFIX
wine cmd.exe

3. Update Proton/Wine

Since you mentioned that wine64 works and wine-staging also works, this could be a specific issue with the Proton version you’re using. You might want to:

• Update Proton: Make sure you are using the latest version of Proton, as updates might resolve such issues.
• Check Proton Configuration: Sometimes, specific configurations or patches in Proton might impact behavior.

4. Workaround with Wine Staging

If wine-staging works fine for your needs, you might continue using it as a temporary workaround. Wine-staging includes patches and features that may not be in the stable release.

5. Recreate the WINEPREFIX

Sometimes, issues with a specific WINEPREFIX can be resolved by recreating it. Try removing the existing prefix and creating a new one:

rm -rf /tmp/prefix
mkdir /tmp/prefix
WINEPREFIX=/tmp/prefix wineboot

6. Debugging Information

If the problem persists, you might want to gather more debugging information. Run wine with debug output to get more insights:

WINEDEBUG=+file wine cmd.exe

This command will generate detailed logs that might help identify the exact issue.

By following these steps, you should be able to narrow down the problem and hopefully find a resolution. Let me know if you need more help!