I'm in the same boat, the geniuses tend to look at you like your mad if you seem to have any technical knowledge and insist it's not just a faulty handset and a replacement is a waste of everyone's time. No doubt i'll be told to restore from new and see how you go which is soul destroying. The phone is essentially not fit for purpose due to the intermittent restartsWell, software issue would definitely be preferable to hardware issue... Still not sure how to handle this at the Apple Store tomorrow though... It seems pointless to swap it out once more to just have the same thing happen again.
I can't understand why this would not affect the iPhone 13 series which is the same SoC, the SE doesn't have any custom hardware, it's the same logic board