Battery lasts all day (and it's 4 years old). Doesn't turn on when it's in my pocket.
These anecdotal "I switched to x and its waaay better" things always reek of bias.
That a 2017 phone is slower than a 2018 phone is obvious - plus you'd need to reset the s7 to factory defaults for fair(er) comparison.
I do support on iPhones (not an Apple employee) and I've never experienced the the vaunted "this is so much better" moment.