It looks like the S22 launched with android 12. I could be wrong but I don't think the MB wifi app will be able to reverse sync with PowerAmp in android 12 in it's current state. 2 things need to happen before that can work.
1. PowerAmp needs to change it's code so that the playcount data is not stored in it's own data folder. These folders are completely off limits to other apps in android 12 no matter what file permissions are granted. A rooted device might be able to bypass it.
2. If point 1 happens, the MB wifi app will need to be modified to look in whatever folder poweramp chooses to store its playcount data
Currently the MB wifi app you download from the play store will not work on android 12 for reverse syncing.
I have a Samsung Galaxy A52s 5G with Android 12, MusicBee Wifi Sync App v2.0.0 and the latest Poweramp version (build-939-bundle-play).
Up till now I've always been able to reverse sync my playcounts with MusicBee.
I've had some occasional troubles during the sync, which I believe were related to a bad wifi connection and not related to Android 12.
In short, reverse sync does work for me with Poweramp on Android 12.
after doing a wired sync, "Server not found. Ensure MusicBee is running and Windows firewall..." message.
i have MusicBee set in Windows Defender to allow MusicBee for private and public access.
I had to set my laptop's IP address to static for the wifi sync to work. Don't remember exactly how I did this a few months ago. I believe I found some comments on this forum which helped me to get it working.
I sometimes still struggle to get a connection even with static IP, but then I try restarting Musicbee and the wifi sync app or even the laptop & smarthphone itself. That has always fixed any remaining connection issues.