I am basing it on what I have heard normal users say. The easiest thing is what they are used to. People mostly use UIs that are not idiomatic. Websites vary wildly, lots of mobile apps do not stick to conventions, and even some desktops apps do not. For example, what else uses a ribbon menu like MS Office? Most people switch between desktop and mobile. Some people like an app to be consistent across platforms - which means breaking with platform conventions.

People do tolerate AWS Console though. Jira seems to be widely used.