On my Surface Pro 7:
* The Win10 "Night light" feature became unavailable about half a year after I bought the device. Had to go back to using f.lux. (Meanwhile, on my 2012 ThinkPad with an old NVS5400M graphics card, Night light works just fine.)
* The front camera would regularly get stuck in a bad state, with the light and IR illuminator turned on but camera unavailable, until a reboot. A recent driver update seems to have mitigated the bug; now the camera just reports an error until I reboot, but at least the lights don't stay on.
* There's no S3 Standby state. Either the computer stays on in "Connected S0", with sounds playing, radios on, snagging my Bluetooth headphones' connection, or I can put it into Hibernate, burning through 16 GB of the SSD's TBW every time.