I have been having similar thoughts recently. With just 4 years into my career (working at a FAANG for last 2), I too am looking around for a job. But it all looks the same corporate BS, providing "business value", grinding for promotion, being a small cog in a enormous machine, dealing with middle managers and their egos and endless insecurity, estimations and deadline chasing, I feel so done and tired. Add the bullshit interview process on top of all this and it is enough for me to never want to change jobs again. I feel like I am in hell.