UI

EduardoMartinez Features we are requesting are so minor resource wise it's nearly negligible, and they are pretty much already implemented elsewhere, they only need some mapping to shortcuts. And having those features added far outweighs the cost they would incur from end-user. If these things aren't to your liking, use Chrome. This Frankenstein is barely distinguishable from it by this point.

And being light doesn't equate being fast and responsive. For instance, PDF reader sucks, as does touch scrolling. Well, at least compared to the old Edge. That was the one feature making me use Edge over Chrome and Firefox for reading, the thing I spend most of the time on. This DevEdge doesn't yet come even close, but here are my fingers crossed we'll get there eventually.

The reason we are even discussing this and requesting features is because we loved the old Edge, despite some of its faults, or we wouldn't be looking at the early stages of its successor and trying to contribute ideas which work great for it already.

What consumes resources is page rendering, page content storage and unloading from memory, JS engine for web scripts execution... The UI has minimal impact overall.