Can't say that I am. There's too many niceties about using macOS that I would gravely miss in Linux.
- My family all use iMessage so I'd immensely miss Messages.app.
- I'm a photographer (hobbyist), and rely on Adobe Lightroom and Premiere Pro
- Having several other Apple products, the horizontal integration is just /too nice and convenient/ to give up. I spend at least 8 hours a day writing/looking at code and the rest of my day is being a dad. I don't have the time nor the energy to always be tinkering with my devices to get them exactly how I want them to look/feel/behave.
- As a developer, I have no major issues with my workflow using macOS. Also, the M1 is excellent. Show me another laptop that's as light and can literally go a full work day on battery.