Reboot on other OS uses a ‘Fast Startup’ , that puts hardware into a hybrid hibernation state instead of a full shutdown. Manjaro cannot initialise audio device correctly from hybrid hibernation state, but rebooting Manjaro will power down the device and reload it correctly
Delivering a great startup and shutdown experience | Microsoft Docs
Customer telemetry tells us that users boot and shut down their PC at least once a day…The default boot performance has improved dramatically with the leveraging of hibernation technology…
…The faster startup and shutdown sequence uses the hibernate infrastructure to place the PC in hibernate. Unlike a full shutdown and boot, the user session is closed and a hibernate is performed. As a result, the hibernate file is much smaller, ensuring that the hibernate and resume process is faster.
Use Shutdown option instead of Reboot on other OS to confirm the problem is due to ‘Fast Startup’
then suggest disable ‘Fast Startup’ and hybrid hibernation in other OS