Configure an S3 compatible object storage provider for uploads

Okay, I thought I had a slight grasp of what I was doing, but now I think I’m completely lost.

So what is the difference between S3 CDN and CDN?

Would it still work if I reversed which of those 2 I’ve commented out?

I noticed an odd issue with the background image of my welcome banner too, is that related at all to any of this?