You left the exif data intact. Picture taken with an Apple phone, date of creation still intact, as well as profile ID.
Easiest way is to open up paint, copy the whole image or just part of it.
Make a new file, paste the image or image part into the new file and save it.
Exif data is file metadata embedded into it. By copying the image information that you care about and putting it in a brand new file, there's no way the metadata can transfer over unless you just copied the file and pasted it while using the file explorer which is unbearably dumb.
If they were interested, they'd look at my posts, most newfags wouldn't know how, let alone why spoilers were active.
Otherwise, if I wanted to be a dick
I would ~~not~~ be doing this all day long.
For the record, nothing's stopping you from making a copypasta from my posts and naming it NEWFAGS_GUIDE_TO_EXIF_REMOVAL.png and posting it once every few threads.
I'm just an oldfag who saw some hilarious shit go down many years ago because some dumbass was phoneposting and uploaded a picture taken from said phone.