The best possible experience is 6-8k at 32", low DPI can go burn in hell.
Given that most of the gear in the business world is laptop-shaped, requiring two DisplayPort cables is just not going to fly. What do you mean, "get that expensive USB-C to dual DisplayPort dongle from Sonnet"? I thought DP1.4 was perfectly capable of driving an 8K monitor over a single cable, heck, that's what my old Dell Precision 7520 laptop is supposed to be able to do.