Yep a few times , once direct to doha and a couple of times en route to Colombo and Dhaka . Long time ago mind but don't recall having any problems with them
Flew with them last week to Thailand. Decent airline tbh. There economy is only just down from other carriers premium economy offering.
They're very good. Best I've been on. But like @DannyWilsonLovechild says, you've kind of got to not think about what you're doing.
Some are trying to minimise their damage. Wizz air strikes me as one such example. But all are contributing to climate change. But frankly, we all are to some degree. The addition you get with the Middle Eastern carriers are their human rights records and brutality of their minorities.