iCloud Photos uploading over mobile data when they shouldn’t.

Should photos upload to icloud even with low data mode turned on? Is this a new thing in ios 18? I know that before the icloud sync would stop when I disconnected from wifi and continue every time I connected. It never uploaded anything though mobile data. Now (after updating to ios 18) it happenes all the time that it just decides to upload all my photos to icloud even on data and because i shoot a lot of video (through the filmic pro app - so very big files) it drained all my data multiple times. I haven’t found any switch in the settings to change this so i had to deny the app’s access to data usage, which also means i can’t view photos while I’m on data. I first thought it’s a bug on the ios 18 beta but after updating to the public release, it seems like it’s a normal thing now.

Is there something I’m missing? Is there a way to turn the icloud sync off?

I also noticed when I wanted to download a playlist on Apple Music, i started downloading it on wifi but went away for a moment just to find out it kept downloading even after disconnecting from the wifi, downloaded the whole playlist and drained like 8 GB. This never happened before ios 18 with low data mode on.