So I was having a bad idle battery drain on my phone overnight. I tried a factory data reset, but it didn't make much difference. Tried to uninstall various things and it didn't really help. Finally decided to do a factory data reset and not install Google fit or google photos. I do not believe that Google photos is the culprit. Battery drain greatly reduced afterwards.
With Google fit
Without Google fit
Sent from my Verizon LG G4
With Google fit
Without Google fit
Sent from my Verizon LG G4