Beyond 2 has almost none of the sensor suite, no eye tracking, no meaningful compute, no pass-through video, no inside-out tracking, no gesture control, and requires two to three entirely separate units set up around the room to do any outside in tracking, yet it still weighs 4-5x what glasses weigh.
Just the displays and lenses will outweigh glasses considerably and there's nothing to strip back when you're down to display and lenses. Throw in a chassis and head strap and you're pretty far from glasses in weight and ergonomics.
Beoynd 2e has eye tracking. The added mass is just 1 g which is kind of hilarious. You could add 8 visual sensors for pass-through, inside-out tracking and hand tracking, adding maybe 10 g. Compute should probably be on the wired external unit or streamed wirelessly. Having it on-board would probably add less than 50g of mass though, but you also need cooling which is not very easy without adding mass. You could try something like structural heat piping through the headstrap or the battery wire.
Anyway I think it should definitely be doable under 200g, which would be much more comfortable than the current 750-800g.
Just the displays and lenses will outweigh glasses considerably and there's nothing to strip back when you're down to display and lenses. Throw in a chassis and head strap and you're pretty far from glasses in weight and ergonomics.