I’ve been using DisplayCal myself, but I do need to run through it for the new laptop, especially as the default profile for my external display is off. I’m not super worried about having to run the underlying libraries via Rosetta in the short term at least, since it’s about generating that ColorSync profile, and only needs to be run when its time to generate an updated profile. I’d be more worried if it was like Windows where DisplayCal offers integration to detect when Windows “forgets” your profile.