Re:Fed up with the Mac, I spent six months with a Linux laptop
by krzyk on Saturday April 03, 2021 @05:30AM
(#26679533)
I think this might be issue with given laptop.
Some non-apple laptops sometimes reduce badwidth of thunderbold 3 (e.g. in mine t490s the bandwidth is halved, just because - this is hardware, not linux).
I do remember however that contrary to macos my 2012 macbook air could drive higher resolution external monitors when running linux. So I'd put this into the Thunderbolt is a hackjob on linux box.