Linux

There are a bunch of non bloated alternatives with whether wayland compositors and also X11 window managers, and there's also kde/plasma, xfce and mate if still wanting full DE, plus a hybrid lxde-gtk3/lxqt (lxqt supports both X11 and wayland I believe).

If going the non bloated ways, distributions can offer some modifications on the system configurations files, so that users can start with working software out of the box, and can even offer installation meta packages for a complete set of i3/sway packages to have an equivalent DE experience. What would be left to users is custom settings to get more appealing aesthetics depending on the user, if not i3/sway, then openbox/labwc, and so on. For a DE experience including into the meta package a toolbar like yambar (works on X11 and wayland), dunst/mako, udiskie, redshift/wlsunset and so on. The missing part on non bloated alternatives is easy of configuring through buttons and widgets, and even so lxqt made an easy of configure software component for openbox, and there might be something similar for labwc.

So non systemd distributions are far from dying because of gnome's hostility.

And if I recall correctly, several gnome users (not its huge base of course) are moving away from gnome any ways unhappy with its plugin support, given gnome is known to leave plugins unsupported on its releases and not caring about them.