In the mid-2010s, "REPACK" versions were highly sought after for several practical reasons. Because Pinball FX2 grew through constant DLC additions, a fresh installation from scratch could be a fragmented process.
While the original game is no longer for sale, you can view the current legacy status and community discussions on the Pinball FX2 Steam Community page Modern Alternative: If you're just looking to play pinball, the latest Pinball FX is available on the Epic Games Store Pinball.FX2.Build.030615.Update.incl.DLC.REPACK