Bluetooth headphones stopped working after upgrading to Fedora 41

you might wanna try rolling back to kernel 6.10.12-200.fc40, I don’t know if it is related with your issue but there is a problem with 6.11.x kernels and bluetooth, see there :
https://discussion.fedoraproject.org/t/kernel-6-11-3-200-fc40-unable-to-resume-from-suspend-when-bluetooth-enabled/134008