I'm bothered that Microsoft rev'ed the beta channel to the same version of the Dev channel. (I understand why they did it, but there are a number of features in the Dev channel that are badly broken and now present in the Beta channel.)
I believe this is actually the first beta channel release since Windows 11 first came out. I have been on the Beta channel for a while and none of the stuff that was entering the DEV channel was coming anywhere near the Beta channel. Microsoft must have felt that the sun valley 2 build was complete and moved it into Beta testing to squash bugs. Interestingly, Microsoft is stating that May is the date they are targeting for when this release exits Beta and officially becomes Windows 11's big annual update.
As for the DEV channel, a whole new build will be entering that soon. It is supposed to become a sandbox channel where Microsoft is going to start experimenting for next years big release. I think it will only be once per year where you see the DEV channel and Beta channel having the same build.