I had my shop built in 2018 and had epoxy floor done after the building was done. They had to do a lot to the concrete to prep it as I had a lot of rust stains due to unexpected delay between the slab being done and the building going up.
I went with grey with full coverage flake in grey, black and white. The full coverage flake gives it more texture to give some grip. I don't have to worry about salt but nothing sticks to it so far. It will remove the paint from the bottom of cabinets, tool boxes, or anything else you slide over it.
I haven't had any problems with fading or yellowing, even on the door aprons that are always exposed.