Here we go again. TSMC vs Samsung in 3,2,1.... Gentlemen, start your engines...... ;-)
On a serious note, Apple have really outdone themselves in using Samsung chips which have led to so much controversy, some of which, like the OP above is probably genuine
Don't laugh. My partner had a tsmc chip in her 6s + since sept with insane battery and she watches lots of streaming video. I just upgraded from a tsmc 6s to a Samsung 6s+ and the battery is far far worse than expected.