iOS Backup Stats Accuracy

I'm not quite sure this constitutes a new issue on the repo yet so wanted to ask it here first. The attached screenshot is what I see after I click the cloud logo with the backup number in the top right of the iOS app. The only thing that's thrown me off is that despite having background sync on and opening the app regularly to ensure that the sync is happening, the Total Remaining number has stayed relatively consistent for the last 2 weeks. The total assets seem about right. And I'd say the remaining and backed-up numbers are correct too, but when I actually look through my photos in Immich, I can't really point out any that are missing except a few hundred from the beginning of my photos timeline. Definitely not 30k+ missing. I know that Immich may not be backing up chronologically, but if I didn't have any numbers to look at, I wouldn't be concerned that I'm missing a serious amount of photos. Does Immich load thumbnails and backups at different rates? Am I seeing all my pictures but they aren't actually backed up yet? Let me know if I can help with posting an issue or looking into any other metrics or numbers.