There seems to two very distinct crowds. You are either all in on the Epix or Fenix, with no rational balance.
Precursor: Both are great watches, can't go wrong with either.
With that said, why are so many users convincing themselves they need the battery life of the Fenix? Unless you live out in the middle of nowhere in a "Ted shed" I do not see the issue. Is 6 days not enough? Is 16 days not enough if you do so wish to turn off AOD and use gestures as a compromise?
If you do find yourself spending a week in the woods, is there an issue with packing a small power pack? Or a small hiking solar panel that many multi-day hikers often invest in?
There is some off infatuation with needing the "extreme" of either end. For Fenix users they seem to be the "if the apocalypse hit which would last the longest?" group.
If you take your watch off when you shower, this shouldn't even be a deciding factor as you realistically could spot chare it daily for ~10-15 min