These apps have different niches. Refine and Gnome Tweaks aim to expose things that are not in Gnome Settings but users would commonly want to change. Meanwhile dconf editor exposes everything, most things are things that you wouldn’t want to change; it’s great for discovering new things though, I made great use of it when creating my script to configure gnome to my liking.
https://flathub.org/apps/ca.desrt.dconf-editor
Not to say you can’t use the new tool but dconf exists and is maintained.
These apps have different niches. Refine and Gnome Tweaks aim to expose things that are not in Gnome Settings but users would commonly want to change. Meanwhile dconf editor exposes everything, most things are things that you wouldn’t want to change; it’s great for discovering new things though, I made great use of it when creating my script to configure gnome to my liking.