> Can disable webcam in BIOS when not used
Purism sells laptops [0] with real hardware kill switches for camera and microphone. Welcome to the future.
> Maintenance: T480 is not slim and this is for the better. I can replace/upgrade most components by myself.
Slimness has nothing to do with repairability / upgradeability. Purism laptops are slim and perfectly repairable. (I'm a happy owner).