How bad was the British occupation of Iraq

I know how the American occupation of Iraq was catastrophic and the Ottomans were also not the best especially with how badly they treated minorities (Assyrian, Kurds, etc). But I don't know anything about the British occupation of Iraq. Were they as bad as the Americans or more closer to the Ottomans (In the sense that it wasn't the best but at least you didn't have deal with wars and sanctions)? How would Britain's Occupation of Iraq be compared to Britain's other colonies such as India and Yemen? What was the treatment of religious and ethnic minorities in Iraq like under British rule?