Sure, a restricted subset of serifs and typically when you’re reading a run of text i.e body copy. But the typical neoclassical serifs used in high fashion (think the Vogue logo) with their hairline serifs will look awful scaled to the sizes needed on mobile – regardless of screen definition.
But your corp very likely wants to look young and fresh and not like a very serious, but ultimately boring lawyer agency.
Serif fonts are still existant, with newspapers, lawyers, notaries and aimilar professions. Most modern corporations just don't want to go that direction, because this isn't how they want to be perceived.
Thank you for putting into words something that's I've been wondering about.
Offtopic:
I switched from MPlus Code font to Iosevka just this week for my terminal, VSCode, and Emacs use. Partly due to finding Iosevka more pleasing, its support for ligatures, and liking its italics.
Looking at it now, MPlus is a little simpler while Iosevka has a bit more... Personality?
Serif fonts read fine on any screen with at least a pixel density of Apple's Retina displays. Subjective preferences are another matter, of course. I prefer serifs even on worse displays, because my brain decodes them better. And I will basically refuse to read sans serif in print, or rather, my brain refuses to comply anyway.
