What about this is inferior? I'm a software developer (that is to say, not low in computer literacy), and I've bounced off Anki a few times, the UX is terrible. I haven't used RemNote any more than you have, but unlike Anki it seems actually care about reducing UI friction.

It's not an Anki clone and I don't have low computer literacy. I'm a senior staff ML engineer at a large public company. I don't have the time or patience that Anki requires to make it a passable product. Not a childless student without real responsibilities and all the time in the world.

The majority of the population has low computer literacy

Yup.

As H. L. Mencken observed in 1926 [0]: "Nobody ever went broke underestimating the intelligence of the North American public."

Perhaps there should be an event next year to note the centenary of that astute observation, which seems to have aged quite well.

[0] https://quoteinvestigator.com/2020/03/01/underestimate/