If I make comparisons between TGC 2 @ 1080 & 2019 @ 2160 the visuals do get a significant bump.
I have an edge lit 55" panel set to game mode & generally play within about 4-5 feet of the screen,at this distance 90% of 4K games look amazing but playing TGC 2019 I have to double that viewing distance for the game to look it's best.In shadow the courses loose depth & start to look like previous versions of the game.The trees work for me,the CAG looks ok,the biggest downfall is grass/ground texture transitions & those high rise buildings.