I don't see properly the file manager with snap applications

Hi all,
sorry to bother but I’m struggling with this issue.
I’m under Arch linux with snapd and every application i run with snap do not show properly the file manager and I cannot do any operation, saving or reading files.
This is what i see
Thank you in advance fro helping

I’m new to this, but what is the locale of the host system?

echo $LANG