DanielRibeiro

That's a great question. They expanded it a bit on their "SUMMARY CONSOLIDATED FINANCIAL DATA AND OTHER DATA" section.

Their operating expenses are divided in 3: Research and development, Sales and marketing and General and administrative.

They also describe a bit the evolution of these under the Risk Section, beneath "We have a history of net losses, we anticipate increasing operating expenses in the future, and we may not be able to achieve and, if achieved, maintain profitability."

I really like the point the uBlock maintainer's make:

"Extensions act on behalf of users, they add capabilities to a user agent, and deprecating the blocking ability of the webRequest API will essentially decrease the level of user agency in Chromium, to the benefit of web sites which obviously would be happy to have the last word in what resources their pages can fetch/execute/render."