While Google fetches North to strengthen there investment in this segment, Facebook is after the acquisition of Oculus VR in 2014 on its path towards actual lightweight glasses:

https://research.fb.com/blog/2020/06/holographic-optics-for-thin-and-lightweight-virtual-reality/

But Google and Facebook aren't the only companies in that race, Apple reportedly has 1,000 engineers working towards a headset as well:

https://www.bloomberg.com/news/articles/2020-06-19/apple-team-working-on-vr-and-ar-headset-and-ar-glasses

With a nice concept(!) showing here:

https://9to5mac.com/2020/06/29/concept-shows-how-apple-could-create-a-glassos-based-on-the-ios-14-interface/amp/

Virtual Reality has yet to see its major adaptation, while looking good for games and some educational purposes, it didn't create this big market everyone was hoping for.

However, Augmented Reality on the other side has a much easier time. With the $138.7 billion market size in 2019 there is quite a lot of potential to "just" replace traditional glasses with an AR set. At least when the product is aimed towards all day wear.