The GOG store is celebrating a 17th anniversary and so they've launched a big sale, along with announcing Clair Obscur: Expedition 33 is now available.
I’d pay that for it. It used to be $30, and contains a healthy chunk of solid single player story stuff to do in a whole new map area. I would wait until you are just about done with the main game before engaging with any of the phantom liberty stuff though.
I’ll second that. Phantom Liberty is worth a bit extra on top too.
How much? Currently it’s $20.
Worth?
I’d pay that for it. It used to be $30, and contains a healthy chunk of solid single player story stuff to do in a whole new map area. I would wait until you are just about done with the main game before engaging with any of the phantom liberty stuff though.