Ergonomics are important and these ideas are great. I will add that my wife and I both have our machines on tilt platforms that make it easier to see our work without hunching down. My wife has an adjustable Tilt’able
https://www.premierstitching.com/tiltable-products/ and I have a fixed one that we bought from a woodworker at a quilt show. They make a huge difference for us.
This one from Martelli is expensive but they are committed to ergonomics. I haven’t tried it but would have confidence that it does what it’s supposed to do.
https://www.martellinotions.com/mach...-platform.html