Images should have alternate text per https://dequeuniversity.com/rules/axe/4.10/image-alt
Ideally we'd set alt="" but in that case Phorge just drops the empty alt parameter completely.

Ref T16072

Go to http://phorge.localhost/p/user/ or http://phorge.localhost/project/profile/1/ and inspect the <img> element inside the people-menu-image-container class. See the alt parameter.
Optionally, run an Accessibility check in Chromium Lighthouse.