u/Vegemitesangas

I have had my phone screen on, uploading my photos for a couple days already and it has synced like less than 5% of my photos.
Ive looked up old threads talking about slow upload speeds etc and tried really everything to help that I can.

Is it possible to upload from my pc and have the phone sync with google photos and recognise photos that already exist? or is it just going to double up on photos and not help at all?

Looking for alternatives to jsut keeping my phone, screen on, in google photos app for the next 2 weeks.