Hey there, gang. I went ahead and took some shots that I could easily reproduce tomorrow when I get my Sigma 35mm Art lens in the mail to directly compare bokeh quality at various focus distances. I took them next to my vintage FD 35mm f/2 S.C.C. lens, which is about 40 years old...and it appears to have performed better in terms of background smoothness - very sad but awesome for me because I love my FD lenses. LOL
Just looking through the shots I took it appears that this lens renders some very ugly bokeh from about 8-10ft out. When you focus on closer subjects, the lens does a magnificent job indeed.
Tomorrow when I get the Sigma in hand I will try to post the photos next to each other. Unfortunately for me, the weather conditions will change because it's lightly raining right now, so it will actually be MORE forgiving to the RF and FD mount lenses.
Looking forward to see a comparison to the Sigma. I’m glad you found the bokeh at closer focus distances to be much better, as I did.