- pushing for web ecosystem features that would help their own products (ex: Gmail, docs, etc)
- pushing for web enhancements that back SEO metrics that matter to them (ex: core web vitals)
I don’t think it’s as simple as - no more Chrome == no more investment into Chromium because Chrome/Chromium has been their strongest lever for getting web features that Google wants standardized. Stopping investment in that area cedes control of the web to other players who may have opposing goals to Google.
Nowadays (post Omni-bar), one could argue that "the internet" is really a captive portal from g-browser, g-omnibar, g-search results, g-renderer with "content" being significantly funded by g-ads (of which a significant portion of _that_ is returned to google for search placement).
Take away "any browser at all" and does google then ship "Google Electron, powered by Google" that strips the Omni-bar and is a desktop client / portal into g-search, g-docs, etc... and then close off access to Google apps unless through the Google client?
You can't book uber without the uber client, why are you able to use Google without the google client?
Provide a read-only HTML4.0 version to plebes with lots of popovers and banners saying: "for the best experience..."
It's an interesting thought experiment, letting "the internet" lie fallow as each proprietary database attempts to accrue more content...
Does the concept of an interoperable world wide web fade into obscurity? In other words, does separating Chrome from Google make the web better, or is Google's investment in the web holding back the death of the web?
There is no such business model. Chromium development is almost entirely funded by Google. Other Chromium based browser rely on this humonguous investment of development resources; they would not have a "business model" without this "free handout", except perhaps Microsoft and Edge, who might be able to fund it by doing basically what Google is doing.