There are no settings the top menu for LB doesn't even exist in it yet. You can launch games from the bottom menu from double clicking or right clicking and using the context menu. You can also edit games, and the bulk editor is working already. In the original release trying to download any images was causing it to crash though and I still haven't tested to see if that is the case but it hasn't been reported again yet. You can add individual games but drag and drop doesn't work and I see no way of doing any bulk import yet. So if you want to just browse through your library and play games give it a go if you need to add new games, audit, adjust font or spacing, set controller configs you still need to use the old version for now