I have dual 4k right now daisy chained from a Mac at 60Hz. Works totally fine and it was a 2019 MBP (and now a 2021 M1 Pro MBP). This is already a solved prob

I have dual 4k right now daisy chained from a Mac at 60Hz. Works totally fine and it was a 2019 MBP (and now a 2021 M1 Pro MBP). This is already a solved problem if you just stick with TB3+ gear.