com.heroicgameslauncher.hgl VS silverblue-site

The link you put states that the command is heroic but that would be true only in the first two cases (RPM package from the repos or manually installed). If you installed it as a flatpak from FlatHub, e.g., the command would rather be:

The epic games launcher doesn't have linux support. Download the Heroic Games Launcher from flatpak https://flathub.org/apps/details/com.heroicgameslauncher.hgl

Thanks to the 2.5.0 release of Heroic available on Github (also available as an appimage) and Flatpak now the user has the ability to add Windows executables and installers in Heroic, and preview them in his library, here a little more information about this:

Try Heroic Games launcher, it replaces EGS and GOG launchers.

Install Heroic Games Launcher from the Discover store, it definitely seems like the best way to run Epic and GOG games: https://flathub.org/apps/details/com.heroicgameslauncher.hgl Heroic can then add shortcuts to the games you install to Steam, so you can launch them in game mode.

You could ask the maintainers of the Heroic flatpak to add gamescope as an extension, it should be fairly simple to implement and PolyMC and WarThunder are currently doing that.

You can download Heroic Games from Discover (shopping bag icon) in desktop mode (link to the flathub page: https://flathub.org/apps/details/com.heroicgameslauncher.hgl).

Not really, I just installed the Flatpak from here: https://flathub.org/apps/details/com.heroicgameslauncher.hgl

Fedora; from its 'flagship' Workstation, to their glorious Spins and their Immutable Desktops

Fedora Silverblue - pretty well-known at this point, but it’s championing immutability

Couldn't have said it better!

An example of an installable immutable OS is Fedora Silverblue. Notably, you can change the "distro" flavor of Silverblue to try out KDE and then just flip back to Gnome. Each change is seen as an "update" that just moves you over to the new GUI. The article below explains a bit more.

I guess something like Fedora Silverblue might offer you something (to paraphrase) "stupid proof". For example, in this case the rpm-ostree rollback command would have been sufficient. Disclaimer: rpm-ostree builds images, therefore it's by necessity slower than apt. Futhermore, until this change is merged and deployed you'd have to reboot for the changes to apply. You might want to look into Distrobox as well, perhaps it can solve your problems without having to change your distro.

However, I'll add one more that I'm especially fond of. It's one of the most 'stable'\1]) Linux desktop systems\2]) without sacrificing access to the latest kernel-updates and packages. It comes bundled with everything\3]) necessary for productivity right out of the box and is built on top of the fundamentals laid by Fedora's Immutable Desktops. Allow me to introduce uBlue; I know that I'll undersell it regardless, so I recommend you to check the provided link instead.

the immutable desktops offered by Fedora; which would be Silverblue, Kinoite and Sericea (special mention goes to uBlue)

OS: Fedora Silverblue