Double whammy tonight! Time to see if I can't end my personal browser war after all.
Zen Browser is a fork of Firefox that does extensive tweaking on the backend and replaces a large majority of the original UI to try and make a better browser from the remnants of Mozilla's flagship successor to Netscape Navigator. Its main feature (which lets it compete with Arc Browser) is workspaces, lists of tabs you can switch between without having separate windows open, and can optionally unload tabs from workspaces that you get out of. Additionally, it is rather light compared to modern Firefox, so unless you need absolutely bang-on Javascript spec compliance, this is for you I think.
My background with browsers has gone both ways, from being a pleb trying to reduce the hogging that Google Chrome was putting my PC through to being rather experienced with many a fork of these browsers, including Thorium, Ungoogled Chromium and r3dfox. This is but another step in my journey to give my PC as much wiggle room as I possibly can because otherwise it won't last. That's why this and Ladybird caught my eye.
Lightweight compared to Firefox
Supports Firefox extensions
More easily configurable than Firefox
Javascript spec compliance is not perfect, inherited from Firefox
3D Acceleration is incomplete IIRC, inherited from Firefox
Mozilla has dropped funding to an absolute low (Firefox is already falling behind), meaning Zen is at risk of natural deprecation
For the time being, this is a great browser to use on the side, as an addition to my VR workflow (desktop overlay). However, Supermium beats it out in casual use due to the familiar UI. If someone or a group can prove they can maintain Firefox in Mozilla's place, I'm ready to move entirely. On a tangent, it bites that Mozilla Hubs has fallen apart.