Appreciated! I mainly come from using Blender and Aseprite (and many other tools over the years), so you can imagine my muscle memory going HUH when things didn't felt quite right or I lacked certain tools. lol
Oh, I also wanted to mention one more thing and its how awkward it is to make more organic shapes on models, like for example I was trying to make a hoodie, like the back of the head shape, on my model but it was so hard to make a simple bumpy area that I just gave up (partially why I suggested a "smooth" tool but maybe an alternative now with context given might give you an idea).
My little test render, bit flat, but again, hard to make round stuff. :)

Also I plan to use this tool for my game, so do excuse me if I sound ultra picky, haha, but sincerely, I do it out of passion, this is a really neat tool and I'm getting the hang of it. I feel it's gonna make development time on my game a lot faster for designing vehicles (it was hard to find artists that could work on a very specific angle without often looking wrong, and the ones that did do it didn't like doing it, so the easier it is for my team, the better).
I will admit that when I first picked the tool due to all of the issues I almost gave up on it, but I am a very patient person, so I kept trying and the tool does shine when it works.
Also two more things, sorry, one is that I feel that the camera and the mouse don't feel... correct? often times you try to paint a pixel in 2d mode and it doesn't paint or it paints a wrong place? it has to do with projection.
Second thing is that, pressing the button to expand the window to full size... expands BEYOND the desktop bar? Like it fills the ENTIRE screen, which it should not -- it hides all my stuff if I hit it so I can't change apps by clicking on them, so I have to manually resize it instead. I'm on Windows 10 btw.
And again, sincerely, thank you for making this tool! I'm excited to see it improve overtime. :)