Facebook says they have 10,000 employees working on XR, or about 1/6 of the company’s 58,604 employees.
I’ll do some simple math based on public information. I’ll include my notes in brackets if you want to try other variations or tell me where I’m wrong.
Using their public projections from Q1 2021, we might reasonably expect they spend about $6 billion on XR this year for salaries, hardware and overhead.
[ assuming 1/6 * 4 * (Q1’s “cost of revenue” + “R&D”) = $6B ]