Some excellent feedback you have here. I could have written your post years ago.
Let me tell you that I was in your shoes and did end up resigning after saving 200k.. I was late thirties and fed up of the games, incompetent bi--hy people and the lack of western mentality/methods. It was exhausting being around people ready to throw you under a bus at any moment. I was miserable!
As excited as I was - coming home proved a struggle. Inflation is eating through savings. My country is not the country I once knew. The biggest shock is the poverty I see here (I am in the west). It’s also hard to make friends and start over at this age. Clearly I have changed too. I have regretted my decision and often wondered what other opportunities that sliding doors moment would have brought had I not made the decision to leave. Management didn’t ask why. Another shock.
Like you I had no meaningful work and was constantly worrying about being let go. Being in that age bracket there was a lot to lose. Manager also got a kick out of holding off leave approvals until the week before. It was very very stressful with a family in tow. I now have a wonderful team and brilliant manager. I do not miss those awful people in aramco. Just resent the high taxes I’m paying now. I’m still exhausted but with good reason.
Moral of the story - you will regret either decision. I know though I sound like I would do anything to go back - the thought of it also makes me sick because of all that I know. Welcome to the world of the gaslighted.