Even if you decide not to fight this one, please consider informing one of the major consumer rights organisations so if there is a design flaw and others are experiencing the same problem the manufacturer can't bury their head in the sand and try to avoid responsibility. Other big tech firms have allegedly done this in the past and bad publicity is often what brings them round in the end.
I had a case on the phone which I removed just an hour earlier because it was dirty underneath, and wit lockdown and working from home I wasn't leaving the house, I saw no need to put it back on, felt like Karma.
Yes I believe the design contributed significantly to it breaking, it just wasn't the time for me to add more stress trying to fight it.
I'm a strange way, it was a good thing, I'm a perfectionist, and having a broken screen put me off wanting to use my phone, that's a good thing in a weird way.