I guess I just find it questionable that all or most companies can increase engineer salaries to FAANG levels and remain profitable. I am pretty sure this is not the case for my last employer, for example, looking at their recent earnings report. Remote hiring might push up wages in most places but there could still end up being a bi-modal distribution of wages, between high-leverage companies and low-leverage ones, as long as there aren't enough jobs for every engineer at highly profitable companies. It's already like that in some cities.