Sounds like you are trying to make up facts to fit your predetermined conclusion.When did I call anybody a liar?
Yes, he left Apple 2017(you are NOT a liar!11!eleven11!), but the real reason is "mysteriously unknown", surely it wasn't just for money or extra because of Tesla, and later he leaves the Swift Core Team(calling it toxic) that mainly consists of Apple employees.
Cough, cough, sum up, that says it all.
Apple and it's environment is so toxic, it's not the first time this comes to light.
Their overall behavior which is slowly coming to light lately just completes the whole image of Evil Apple.
Apple treats their customers bad, Apple treats their employees bad, Apple treats the developers bad.
They walk over dead bodies, and think they are above the law.
Your sequence of events doesn't even make sense. You are trying to imply that he left Apple in 2017 because it was toxic. And yet he spent five more years working for free for an Apple project that he considered toxic. Really?!?