I’ve been in UX design and marketing/branding for over 20 years, mostly enterprise (large corporations.)

It’s not hard to throw together a few vector lines to shape an icon. What’s hard is designing one that will work in all situations and meet requirements across various platforms, rendering appropriately in all screen sizes and resolutions at any relevant size, as well as when printed on a billboard or on the side of a pen in one to four+ colors.

But designing icons falls under illustration/graphic design, which isn’t paid nearly as well as UX design for a reason. I do things like the above paragraph if I need to rest my brain for half an hour.

So believe me when I talk about why the people who invest the most in tech generally aren’t interested in throwing a monkey wrench into that just because a few designers and users like the novelty. There are, of course, a few exceptions to that general pattern.