Ouch. I notice that my prints look wrong as well now. Color matching seem off on three papers just used. I make my own profiles with i1Pro and argyllCMS, and it just normally works for me, with nice match from screen to print, but not now for whatever unknown reason. Everything is set as I normally have it, screen, driver settings, color workflow etc.
Again, combo is Lightroom (9.1 classic), macOS 10.15.2 and printer driver is 21.10 for a Canon Pro-1000 (firmware 3.010). Tried reinstalling the printer driver, no improvement.
I will try and make some measurements soon and see if they are indeed as off as my eyes are telling me, or I'm just loosing it.
Would be nice knowing if anyone else has suddenly seen their color management slip with this combination of software. Perhaps an issue snuck in with OS or driver/firmware updates.