JonnyT I'm still using the same protector as the original post - this one. I tried another and it didn't work for me. Remember that you really need a week or so with no symptoms before you can really judge if something works - these symptoms rebound every day or two often so you need to be 'clear' to really test if something works or not.
I've recently tried the beta iOS 26 and it still seems to be fine for me, although it's only been 24 hours.