I agree with Jim, I have uploaded Apple compressed pictures to Windows 10 computers with no problem, posted them on camera forums with no problems (not surprising), and text/emailed them to Android based devices with no problems for the receiving party, so that is why I was surprised when OGR forum software didn’t seem to like the files.
In fact the way I converted the Apple compressed pictures to PNG files to post here was to upload them to a Windows 10 computer and then convert and post them