- Barely ever waking from sleep, especially with external monitor connected
- Screen brightness keyboard controls didn't work (needed to use a CLI tool to control gamma as a hacky workaround)
- Had to power cycle repeatedly to get to a desktop when booting
- Not working reliably in clamshell mode
- Randomly forgetting external monitor scaling
- Accessibility features like screen zooming are very poorly done compared to Mac's Ctrl-MouseWheel (which zooms entire screen without crashing)
Things actually got worse as I upgraded to newer kernels. The wake from sleep problem is the #1 productivity killer I had. I had to leave the machine running all the time just to do my job.
A good post on why Linux has so much trouble waking is: https://news.ycombinator.com/item?id=25386605
Not a great feeling.