Stuck with bricked OS

Eventually solved it...

The Galaxy Watch thing + the Netflix thing were solved with this combination(not sure which of these steps solved it):

1. Installed MagiskHide Props Config module and blocked the following using Magisk Hide:

   
   
   
   
   • Galaxy Watch Plugin(all)
   
   
   • Galaxy Wearable(all)
   
   
   • Google Play Games
   
   
   • Google Play Music
   
   
   • Google Play Services for AR
   
   
   • Google Services Framework
   
   
   • NFC
   
   
   • Samsung Health
   
   
   • Wearable Manager Installer
   
   
   • Google Play services(com.google.android.gms and com.google.android.gms.unstable only)
   
   
   • Google Play Store(all except com.android.vending)
   
   
   
   



2. Ran these commands as root:

   
   

mount -w -o remount /vendor

cp --preserve=all /vendor/etc/vintf/manifest.xml /vendor/etc/vintf/manifest.xml.bak

sed -i /`grep wsm /vendor/etc/vintf/manifest.xml|sed 's@/@\\\/@'|sed 's@>@\\>@g'|sed 's@<@\\<@g'|tr -d ' '`/,/'<hal format="hidl">'/d /vendor/etc/vintf/manifest.xml

mount -r -o remount /vendor

2. Installed Bluetooth Library Patcher module

Now the GBWhatsapp Mini problem. For some reason it required that Install unknown apps permission would be allowed for it.

Now everything works fine.