Yeah, I think most other professions where one might imagine them doing something like a stereotypical software interview, use that instead: a credential obtained by a (perhaps very difficult!) test, maybe with periodic re-tests or required refresher courses to keep the credential valid.
I have a suspicion that a big part of why top-comp software companies keep their interviews so incredibly unpleasant has more to do with discouraging job-hopping among them (so, suppressing wages) than with its being the best process for hiring good developers.
You have to wonder if this has backfired. ;) Plenty of people job-hop every 1-2 years, and it's pretty common knowledge which companies ask which level of LC difficulty for which level.
I'm not a big fan of take homes in general but a time-consuming job search and interviews is absolutely normal beyond low-skill jobs in a time of labor shortages.
ADDED: I suppose one could argue that the Bar exam is a bit like that but that's a credential as are degrees which are not necessarily all that overlapping with the real world.