The number of self-righteous people replying to say that they "don't use a screen reader but..." and then speaking in favour of this feature is like... ugh.
I don't have a strong opinion either way, because I don't have enough information. One accessibility consultant has commented, which is good, but still no people who need alt text, e.g. visually impaired people. [Edit: I totally skated over the part where the accessibility consultant said they were blind, I am a doofus. 🤦]
If any visually impaired people tell us that this is a good idea or a bad idea in their opinion I would love that so much. But if people who don't need alt text could please stop talking. Just. Plz.