Gnome Console since it is consistent with the rest of Gnome and works well enough.
From lack of a better solution, I would symlink the folder or use stow --target /etc flag if you use stow for managing dotfiles.
Do note that it won't work well with flatpak Firefox: https://mastransky.wordpress.com/2020/09/25/firefox-gnome-shell-search-provider/
Gentoo and Alpine are both really great distributions.
And with lots of polish and convenient features.
Yes, I thrive in it.
How do you handle lack of systemd? Do you use elogind or seatd? Do you package some things yourself considering Alpine isn't popular as a desktop distribution?
That doesn't mean it is the only option.
But there are other options with Silverblue.
ledger-mode is worth checking out
Check ublue approach like for example in this repo: https://github.com/ublue-os/beyond
In other words, leverage native OCI containers.