I am a LoTR nerd who also like scratch. I am a Blender user. I can make stuff for you in Blender if you want (unlike most software, it's 3d).

I don't know. I have to update this so often that I'm not going to anymore. Software list: Blender, Scratch, Visual Studio Code, Chrome, iMovie.
For most of this I use a Macbook Air M1 chip.