I tried the loopback devices, didnt work, at most i made a script that worked, but i want it to work for audacity:

cat > ~/Music/record-desktop.sh << 'EOF'
#!/bin/bash
OUTPUT="${1:-$HOME/Music/Recordings/recording-$(date +%Y%m%d-%H%M%S).wav}"
pw-record --target 0 "$OUTPUT" &
PID=$!
sleep 0.5
pw-link bluez_output.30:50:75:16:40:A6:monitor_FL pw-record:input_FL
pw-link bluez_output.30:50:75:16:40:A6:monitor_FR pw-record:input_FR
echo "Recording to $OUTPUT (PID $PID) — press Enter to stop"
read
kill $PID
echo "Done! Saved to $OUTPUT"
EOF
chmod +x ~/Music/record-desktop.sh

I am not using any app like qpwgraph to make connections, all i know is that this script works:

cat > ~/Music/record-desktop.sh << 'EOF'
#!/bin/bash
OUTPUT="${1:-$HOME/Music/Recordings/recording-$(date +%Y%m%d-%H%M%S).wav}"
pw-record --target 0 "$OUTPUT" &
PID=$!
sleep 0.5
pw-link bluez_output.30:50:75:16:40:A6:monitor_FL pw-record:input_FL
pw-link bluez_output.30:50:75:16:40:A6:monitor_FR pw-record:input_FR
echo "Recording to $OUTPUT (PID $PID) — press Enter to stop"
read
kill $PID
echo "Done! Saved to $OUTPUT"
EOF
chmod +x ~/Music/record-desktop.sh

as for everything else:

[spiderunderurbed@daspidercave:~/Music]$ systemctl status --user pipewire-pulse.service 
● pipewire-pulse.service - PipeWire PulseAudio
     Loaded: loaded (/etc/systemd/user/pipewire-pulse.service; linked-runtime; preset: ignored)
    Drop-In: /nix/store/admlblh3rvzwjyhvgl8wf5fdr44iqmgc-user-units/pipewire-pulse.service.d
             └─overrides.conf
     Active: active (running) since Thu 2026-02-26 18:55:45 NZDT; 23min ago
 Invocation: f234a6d525b844ba9ee769e0d46787ec
TriggeredBy: ● pipewire-pulse.socket
   Main PID: 3143 (pipewire-pulse)
      Tasks: 3 (limit: 18874)
     Memory: 14.5M (peak: 20.7M, swap: 2.5M, swap peak: 2.5M, zswap: 472.1K)
        CPU: 1.618s
     CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/pipewire-pulse.service
             └─3143 /nix/store/z8pz8hz2psggqsws4n7mzbbdghpcxm71-pipewire-1.4.9/bin/pipewire-pulse

Feb 26 18:55:45 daspidercave systemd[2666]: Started PipeWire PulseAudio.
Feb 26 18:55:45 daspidercave pipewire-pulse[3143]: mod.protocol-pulse: vm.overrides in pulse.properties are deprecated, use pulse.properties.ru>
Feb 26 18:55:45 daspidercave pipewire-pulse[3152]: pw.conf: execvp error 'pactl': No such file or directory
Feb 26 18:55:45 daspidercave pipewire-pulse[3154]: pw.conf: execvp error 'pactl': No such file or directory

[spiderunderurbed@daspidercave:~/Music]$ systemctl status --user pipewire-alsa
Unit pipewire-alsa.service could not be found.
[ble: exit 4]

[spiderunderurbed@daspidercave:~/Music]$ systemctl status --user pipewire-alsa.service
Unit pipewire-alsa.service could not be found.
[ble: exit 4]

[spiderunderurbed@daspidercave:~/Music]$ 

I managed to fix it for pw-record, I dont know how to get it working for audacity:

cat > ~/Music/record-desktop.sh << 'EOF'
#!/bin/bash
OUTPUT="${1:-$HOME/Music/Recordings/recording-$(date +%Y%m%d-%H%M%S).wav}"
pw-record --target 0 "$OUTPUT" &
PID=$!
sleep 0.5
pw-link bluez_output.30:50:75:16:40:A6:monitor_FL pw-record:input_FL
pw-link bluez_output.30:50:75:16:40:A6:monitor_FR pw-record:input_FR
echo "Recording to $OUTPUT (PID $PID) — press Enter to stop"
read
kill $PID
echo "Done! Saved to $OUTPUT"
EOF
chmod +x ~/Music/record-desktop.sh