There are lots of companies working on AR/VR for productivity. Microsoft Hololens, All of the Windows Mixed Reality headsets, Meta, DAQRI (not so much for your description of productivity. eg word processing), and ODG. If you want a headset that has the best resolution, you should check out the Pimax (https://www.kickstarter.com/projects/pimax8kvr/pimax-the-wor...). There are mixed reviews on the headset itself, but they have very high resolution (Pimax 8K VR) that's 4K per eye.