I don't really buy it.
I mean Chrome controls HTML not through the committee, they control HTML because everyone uses Chrome (except iOS, where Apple outright forbids it).
Also MS using Chrome engine doesn't mean they have no say at all, if Google pushes out a feature MS doesn't like, they can just disable it in their version.
Point is, standards aren't made by committee, they're made by pushing out "experimental" features, land-grabbing market share, then documenting them ex-post.
Previously, Google's WebExtensions Manifest v3 causes problems with uBlock Origin and all other tracker blockers: https://www.bleepingcomputer.com/news/security/chrome-extension-manifest-v3-may-break-ublock-origin-content-blocker/
Thing is, a Googler with a spec sheet and a deadline is no Tim Berners-Lee, or dare I say, Theodore Nelson. While he's desperately trying to convince himself that his overlords will NOT just bolt DRM to his creation the moment it gets traction, he's not going to do amazing work.
Which gets to the heart of Google's problem, they're creatively uninspired.
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