I think you’ve explained everything, but I also think some things could be made more intuitive. In order…
The disc icon to save a image - I found in the documentation what icon to look for, found it, and never thought to make sure it wasn’t used in additional place(s). I never bothered to read the text around that image - I was just following the instructions, saw the appropriate icon, and clicked. It was late, I was tired, and I just wanted to save an image to email it. If I remember correctly, I did a “screen capture”, copied and pasted into email, and went to sleep. …of course I learned, and from then on, I’m using it with the correct icon to click on. Unless it messes up the code, I think the icons should be obviously different from each other.
The image growing and shrinking as I was moving my mouse around is probably just what you guessed, I must have had a finger on the scroll wheel. Maybe later I can find a way to switch the mode so this doesn’t happen. For me, it was annoying, but I could work around it. I probably selected something I didn’t realize would cause this to happen. Again, I eventually finished, and figured next time I would find out how to prevent this.
Processing Queue - good to know I need to read about this. I assumed I could right click and select several images, then send them. This doesn’t matter to me, but I’m guessing it matters a lot to others. Once it worked, I selected one image at a time for export. Will read up on this later today.
Can I ask why RT doesn’t have a menu bar up at the top?
Finally, I’m sure it’s very useful to be able to snap to all those many aspect ratios, but I wish it had one simple choice at the top “unrestrained”, and I wish I could make that the default for me. Again, for me, for unrestrained crops, I have no need to click and drag the box anywhere. All I need is a way to crop from the straight lines, or from the corners, and a quick way to adjust the angle if needed so it’s not tilted.
I’m not trying in any way to be “negative”. I’m sure eventually I’ll get things sorted out so it’s easy for me to use. At least as of today I’m feeling pretty comfortable, rather than “lost”.