Having to disable Bluetooth seems like a big deal to me in order to get the computer to sleep correctly.

I know that bug, Bluetooth has been messing with sleep since installing the 6.11 kernel on my Fedora 40 desktop. And I've seen many users reporting the same thing. My current solution is a script that disables BT on sleep

Never heard of this, but I just rebuilt my machine, which is still having issues with sleep. Seeing as how I have zero bluetooth devices (wires never fail me!), I will be disabling bluetooth immediately to see if this resolves my woes.

I'm all in on bluefin-dx too, and Bluetooth is working fine for me in my lenovo x1 carbon. Fingers crossed you can sort your issue out.

Something about the Bluefin artwork and outward communication really turns me off. The project is using some good concepts, for sure. Though, Bluefin will never be eligible for production in the way that other commercially supported Linux based user endpoints, Linux based systems with immutable patterns, have been for a while.