I’ve noticed this too on my S25 after the latest update — there seems to be a slight static or crackle when connecting to certain Bluetooth headphones.
Try going to Settings > Connections > Bluetooth > [gear icon next to your device] > HD Audio and toggling it off/on. Sometimes switching codecs (AAC/SBC) helps clear up the interference.
If that doesn’t work, clearing the Bluetooth cache can also help: Settings > Apps > Show System Apps > Bluetooth > Storage > Clear Cache. Hopefully Samsung patches this quickly in the next update.
Try resetting the Bluetooth settings.. Go to settings/general management/reset/reset Wi-Fi and Bluetooth settings and then tap the reset button. Note this will remove all paired device from the Bluetooth connection (including one's vehicle if it paired), so they will all have to be paired again, Also, this will reset the device's Wi-Fi connection, but a simple login back into the network is all that is needed
