There are a lot of ideas swirling around right now, it has been the most anybody has cared about OAuth in 15 years.

Most auth companies are playing in this space, some are trying to own the spec, like WorkOS, some are working more closely with standards bodies.

I, like the other commentator, am of the opinion that 90% of the problem space is solved with OAuth and the remainder will be worked out over the next few years as we see how autonomous agents evolve.