The problem here is that mv won't work across file-system boundaries - that has to be checked first. And I think it's also a copy-then-delete operation. I'd prefer if it used cp --reflink=auto which can copy files on modern file systems (xfs, btrfs) without copying the actual contents (think like hardlink but it's still a new inode with separate contents).
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Steam's move install folder option (available when right-clicking a game > Properties > Local files), which moves the game content from a library folder to another, could be vastly improved on Linux.
It seems that, currently, it moves file per file instead of the game directory as a whole, which might seem ok when on Windows's file system (NTFS), but if it actually moved the game directory (using, for example, the
mvcommand), it could take great advantage of Linux's file system (Ext4) performance on this operation, which is an almost instant operation.If this operation does not moves file per file, then, something is really strange here since a directory move should be ultra fast within most file systems on Linux.
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