I realize that $80k is a lot of money for Europe/UK/Asia/South America/rest of the US. But if you're a top engineer, you could double or triple your income by working for a different company (or as a consultant.)
I should mention that I don't have any problem with GitLab's compensation, and I think it's actually pretty fair. But fair doesn't really matter. A top engineer will just go to the company that pays more. I'm sure GitLab has a lot of great engineers, but just based on their compensation, I'm pretty sure it's not one of the best engineering teams in the world.
Here's a few references/articles/job boards:
* https://news.ycombinator.com/item?id=10924957
* https://dev.to/sam_ferree/why-i-think-cost-of-living-pay-for... (see some of the comments in there)
* https://m.signalvnoise.com/basecamp-doesnt-employ-anyone-in-...