I’ve just uploaded a portrait-format picture that was sideways on my computer without needing to rotate it first ! That is an improvement.
In delight at your response I tried this.
I’m sure it works in theory, but for me at least, it doesn’t work in practice. The pictures assured me that they were continuing to upload when I returned to them, but they simply never finished; deleting them and re-uploading without leaving the tab a few minutes later, they uploaded without complaint.