Yep, all the differences are being discussed over in the General subforum.
General consensus seems to be that the Disney+ versions are the 2012 Reliance 4K scans that Lucas was preparing for the 3D releases that got scrapped, and according to Pablo Hidalgo, that Greedo scene change was the last alteration George made to the film(s) before he sold LFL to Disney.
So, it would’ve been one last change that would be introduced in the cancelled 3D release, despite not being in the 2011 Blu-ray?