Max Power Saving mode has a major issue on my phone ever since the Nougat update. I can put my phone in max power saving, use it as expected, but when I return it to Normal mode, all of my icons and widgets on my home screen will have disappeared. I have to then add all of them back to my home screen manually.
It appears this is a known issue that's been happening for a while (posted below; the headline says "solved" but it is NOT solved):
Solved: Ultra Power Saving mode resets Home screen (and ot... - Samsung Community - 2962
I would expect Verizon to fix this in an upcoming update as it's clearly a broad issue.