the browser vendors have been more than happy to use experimental features to chart their own course, which I think can be a good thing to spawn innovation and healthy competition. (given the standards bodies will be slower and more prudent - similar to how python doesn't want "pedantic" to be part of python core, because that would hurt pedantic's innovation, not improve it)
Maybe the way someone from the chrome team could tap into "business value" of "let's build these htmx features in chrome" would be that it allows developers to write "internal/developer/crud apps" where a "only supported in chrome" is acceptable.....