+R would be amazing to have on GOG. I'm straight up pretty bad at it, but it's probably still my favourite in the series, which says a lot about the quality of this game. The graphics, music, and overall vibes are a fun glance into the past of this series, which makes it a perfect candidate for preservation by the GOG team.
We know that ArcSys has worked previously with CDPR and GOG, both because of previously removed Guilty Gear games and the more recent announcement of Lucy as the first guest character Guilty Gear has ever had. it would be awesome and (in my opinion) realistic to see the Guilty Gear series come back to this platform. I'd happily double dip on Strive, Xrd Rev 2, and +R for offline installers. I'd also be willing to pick up other games in the series for the first time if they appeared here. Please make this happen, GOG and ArcSys!