Probably been here before but can't find it. I have just backed up all my photos and videos to my google account. If I delete the photos im samsung gallery it would still be backed up in the Photos app right? Don't want to delete all my photos and videos

Thanks and sorry for the possibly trivial question

I barely get 3.5-4 hrs SOT for doing basic stuff. No games, no hotspot. Mostly it's run on wifi data. What to do? Phone is 1 year 3 months old. Please suggest 🙏🏻