They don't have time to see this.

I work at tiktok in mountain view and this article seems exaggerated. I don't know about the UK office but while there are may be folks in the US working 996, most of my peers do not have that schedule. If I were to stereotype with my biases, I'd say the hours would be similar to a FB/Amazon (>=45 hrs/wk) than a Google (<=40hrs) but that some members of teams here may also have 1-2 nights a week with 7PM calls (10AM Shanghai). Although, if you're a team lead or manager, you may have more frequent alignment meetings.

I think certain teams and functions may have higher demands perhaps due to lack of resourcing, sudden business priorities, or a need to resolve ambiguities during the transition of a scope but it feels like it's getting better overall. From my experience, people will work overtime if needed but definitely not for the sake of a 996.