I go for firefox. If a particular site is broken in there I open edge just for that task and I'm done with it

Absolutely. Vivaldi is great. I prefer it to FF. They definitely won't incorporate DRM changes unless it's completely not modifiable from the chromium core, and if they do how big a deal is it to change browsers? Switch then.

Why not both? If anything, what (truly) makes Chromium-based browsers stand out is cloud gaming (since it forces you to use em. While firefox is a no-go).

After using Firefox for nearly a year, I am using Google Chrome again and it feels much more snappier/fluid, and also uses less power compared to firefox (power draw is often near idle or outright idle), font rendering seems better on Chrome too. Only issue is that it doesn't support hw video decoding (vaapi) on wayland, but I just use MPV for that. Firefox does support vaapi even on Wayland but it's outrageously less efficient than mpv.