Bluetooth: tested, works. Provided as USB device that can be attached to any VM and works with standard tools like blueman.
Webcam and mic I plan to test soon.
4G modem I plan to try this tool to get it working a bit later.
Fingerprint reader I see appears as a USB device, but I can’t find any use for it in Qubes. The OS is set up so that USB devices are hidden from dom0 so it wouldn’t be possible to use as a login method for example. Happy to test if there is a good use case I could try.
Performance is great overall. I can run many qubes at once even with intensive things like YouTube and backups without any problems.
For battery life I got about 4.5 hours of active usage including web browsing and video watching without trying to optimize anything. It could probably improve.
Graphics are smooth in dom0 including window compositing effects. But of course they get lower framerate and more CPU intensive inside qubes because there is no GPU passthrough. That’s not the laptop it’s just Qubes OS design.