Code:
pi@moode:~ $ apt-cache show bluez-alsa-utils
Package: bluez-alsa-utils
Status: hold ok installed
Priority: optional
Section: utils
Installed-Size: 354
Maintainer: Debian Bluetooth Maintainers <team+pkg-bluetooth@tracker.debian.org>
Architecture: arm64
Source: bluez-alsa
Version
Depends: libasound2 (>= 1.0.16), libbluetooth3 (>= 4.91), libc6 (>= 2.29), libdbus-1-3 (>= 1.9.14), libfdk-aac2 (>= 2.0.1), libglib2.0-0 (>= 2.37.3), libldacbt-abr2 (>= 2.0.2), libldacbt-enc2 (>= 2.0.2), libopenaptx0 (>= 0.2.0), libsbc1 (>= 1.5), libasound2-plugin-bluez
Conffiles:
/etc/alsa/conf.d/20-bluealsa.conf 6d1d0420a052e7ffe458ecf93dd337aa
/etc/dbus-1/system.d/bluealsa.conf 5a75b7516e61bedab25762e3a640e5b2
/etc/default/bluez-alsa 830167733c7cb0b45b745c666a2e1cbb
Description: Bluetooth Audio ALSA Backend (utils)
Bluetooth Audio ALSA Backend allow bluetooth audio without PulseAudio.
.
This project is a rebirth of a direct integration between Bluez and ALSA.
Since Bluez >= 5, the build-in integration has been removed in favor of 3rd
party audio applications. From now on, Bluez acts as a middleware between an
audio application, which implements Bluetooth audio profile, and a Bluetooth
audio device.
.
This package contains files that is tool using bluez-alsa plugin.
Description-md5: 3ec7d9335d6bd8b4f19b4e2fe7acbff3
Homepage: https://github.com/Arkq/bluez-alsa
Package: bluez-alsa-utils
Source: bluez-alsa
Version: 4.0.0-2moode1
Architecture: arm64
Maintainer: Debian Bluetooth Maintainers <team+pkg-bluetooth@tracker.debian.org>
Installed-Size: 333
Depends: libasound2 (>= 1.0.16), libbluetooth3 (>= 4.91), libc6 (>= 2.29), libdbus-1-3 (>= 1.9.14), libglib2.0-0 (>= 2.37.3), libldacbt-abr2 (>= 2.0.2), libldacbt-enc2 (>= 2.0.2), libsbc1 (>= 1.5), libasound2-plugin-bluez
Section: utils
Priority: optional
Homepage: https://github.com/Arkq/bluez-alsa
Description: Bluetooth Audio ALSA Backend (utils)
Bluetooth Audio ALSA Backend allow bluetooth audio without PulseAudio.
.
This project is a rebirth of a direct integration between Bluez and ALSA.
Since Bluez >= 5, the build-in integration has been removed in favor of 3rd
party audio applications. From now on, Bluez acts as a middleware between an
audio application, which implements Bluetooth audio profile, and a Bluetooth
audio device.
.
This package contains files that is tool using bluez-alsa plugin.
Description-md5: 3ec7d9335d6bd8b4f19b4e2fe7acbff3
Filename: pool/bullseye/main/b/bl/bluez-alsa-utils_4.0.0-2moode1/bluez-alsa-utils_4.0.0-2moode1_arm64.deb
Size: 101844
MD5Sum: 715b5a3927ba3eae0d24672b51d7b2c9
SHA1: 61718d9063f80a2e6dec0852f243d21807ea7cf5
SHA256: d721b2642e5807fc12e81f7152a50904bd6f2d0478050581779c754f78e8255d
Package: bluez-alsa-utils
Source: bluez-alsa
Version: 3.0.0-2moode1
Architecture: arm64
Maintainer: Debian Bluetooth Maintainers <team+pkg-bluetooth@tracker.debian.org>
Installed-Size: 224
Depends: libasound2 (>= 1.0.16), libbluetooth3 (>= 4.91), libc6 (>= 2.29), libdbus-1-3 (>= 1.9.14), libglib2.0-0 (>= 2.30.0), libldacbt-abr2 (>= 2.0.2), libldacbt-enc2 (>= 2.0.2), libsbc1 (>= 1.5), libasound2-plugin-bluez
Section: utils
Priority: optional
Homepage: https://github.com/Arkq/bluez-alsa
Description: Bluetooth Audio ALSA Backend (utils)
Bluetooth Audio ALSA Backend allow bluetooth audio without PulseAudio.
.
This project is a rebirth of a direct integration between Bluez and ALSA.
Since Bluez >= 5, the build-in integration has been removed in favor of 3rd
party audio applications. From now on, Bluez acts as a middleware between an
audio application, which implements Bluetooth audio profile, and a Bluetooth
audio device.
.
This package contains files that is tool using bluez-alsa plugin.
Description-md5: 3ec7d9335d6bd8b4f19b4e2fe7acbff3
Filename: pool/bullseye/main/b/bl/bluez-alsa-utils_3.0.0-2moode1/bluez-alsa-utils_3.0.0-2moode1_arm64.deb
Size: 66388
MD5Sum: 0a97d347b9696a61cd29b0b876b6a734
SHA1: 5e0c66734867ea84ed20e7d60c8505aabf22f5bd
SHA256: 27bd5e79af9c6d13340106dd4192fe9961f2cee2de6499901d3487f4dae841a0
So the order of bluez-alsa-utils versions offered is: 4.0.0-2moode1+codecs, 4.0.0-2moode1, and, finally, 3.0.0-2moode1
Hence, the attempted downgrade when I tried your commands.