I might be late to the party on this, but I looked into the 4K versions of the Original Trilogy on Disney+, and correct me if I’m wrong, but here’s what I think they did here. They took the original Special Edition prints from 1997, remastered them in 4K, and recreated the 2004/2011 changes, as well as the notorious “Maclunkey” addition. The recreated changes look very good, especially removing Anakin’s eyebrows in Return of the Jedi. This new version also looks very good and not as dark and saturated as the DVDs and Blu-rays, but I’m still not a fan of 4K remasters of older films adding teal filters to them.
There is no teal filter. Comparing the colors to 35mm print references, they are pretty faithful to the theatrical colors, particulary the 1997 SE.