It could be interesting to try and find if we have more in common than MDM, iOS 14.2, new devices and Xamarin. When I look at my crash logs, it seems to be pointing to Firebase ->
Binary Images:
0x100818000 - 0x104313fff <APPNAME> arm64 <3126bb8e603136a4a13b2c6c62e6500e> /var/containers/Bundle/Application/<UUID>/<APPNAME>.app/<APPNAME>
0x104854000 - 0x10488bfff FirebaseMessaging arm64 <d70a4d9b0fd23dc9854372da0d304cf2> /var/containers/Bundle/Application/<UUID>/<APPNAME>.app/Frameworks/FirebaseMessaging.framework/FirebaseMessaging
0x1048b4000 - 0x1048c7fff FirebaseCore arm64 <a986f726bd943fb29b706326b0fd20f4> /var/containers/Bundle/Application/<UUID>/<APPNAME>.app/Frameworks/FirebaseCore.framework/FirebaseCore
Firebase is a commonly used service, it wouldn't be surprising if all our solutions are using it.