I have more than 20 years of developing and have seen this playbook many times. Just because SMALL, TINY "alternative" exists does not change the fact that the GORILLA is on.
Every usage of chromium is PLUS for Google. Is feed the support for its development, and more importantly:
Is make sure THEIR APIs ARE THE STANDARD.
This is the key, major point.
Is the same when windows were nearly the only game on top. MS super-happy people make "competitive" apps, as long are done on windows apis.
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The sad, and important truth, is that "standards" are not magically implemented because that is so nice. Is because the MAJOR players are both competing, and forced to work together.
Apple has the card of iOS, and is the ONLY way to make safari "viable".
Safari is supported because the market of iOS is important, the moment developers, like me, can target chromium is the END.
Literally.
That is the moment bosses and customers start saying: Just target chrome, ignore iOS/Safari, lets go electron-like!
Making "electron's" and "web apps as native replacements" is 100% for the benefit of Google, and only incidentally for SOME users.
Google DO NOT CARE for Ux, only care it can get a bigfoot in each market so ITS goals are on top of anyone else.
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or we can hope for dreams, like see how *nix developers implement this and win.
Or accept reality: As long major players have this only 2 exponents of what the web is, the web still is open.