Hey, I remember you also being part of our unexpected eye strain journey. It is frankly smart to move on at some point, as every day I own a device that gives me PWM headaches is a day I'll find time to post in this thread as it's a constant reminder that doesn't go away.
I was fairly happy with my third-generation iPhone SE and find it to be a more comfortable display to stare at. I'm sure I could go back, but there's a night-and-day difference with iPhone 14 Pro Max.
I guess we're still iPhone enthusiasts despite not being able to use the latest devices. I know that it's more likely we'll have to return them, but I still press ahead with the expectation that it'll be fine and I won't get headaches as this level of severity in response is almost unbelievable yet still continues to occur.