Microsoft just did whatever they wanted with the web "platform", and so will Google.
In Microsoft's case what they wanted was nothing. They weren't a web business, saw it as a threat to their platform leverage, and so just left it abandoned and stagnant for years.
Google is simultaneously better and worse: they won't leave it stagnant because the web is their platform, but on the other hand they have a lot more to gain by abusing control of it.
We already have a number of Chromium based browsers that go against some of Google's most fundamental interests (e.g Brave).
The same thing has happened to Linux which was ok as long as it was chasing commercial Unix, spawning POSIX even; but look what happened with systemd, wayland, snaps/flatpacks, Docker, k8s, and all the other erratic developments - all the while not a single end-user app was created in the last decade.
Strongly disagree. Desktop Linux is better than it's ever been before, and not at all comparable to the degenerate hellhole that is the modern web.
systemd isn't perfect, but I think it's an improvement from traditional init. If you prefer the simplicity of traditional init systems, then you're free to use a non-systemd distro. Wayland is a much-needed modernization and simplification of the graphics stack, and again, nobody's forcing you to use it - X11 won't disappear any time soon. Snap, Flatpak, Docker, etc aren't exactly my cup of tea either, but again, nobody's forcing us to use them. Debian, Arch, etc are chugging along just fine. Meanwhile, PipeWire is a significant improvement compared to bare ALSA or Pulse+Jack, and iwd is a significant improvement compared to wpa_supplicant+NetworkManager.
As for new end-user applications, how about Sway?