`idevicesyslog` requires the `--network` flag to obtain logs for iOS devices when wirelessly paired. 

When running Flutter on devices with iOS 12 or earlier versions, [the `idevicesyslog` command is used.](https://github.com/flutter/flutter/blob/5931b4f21da0c564b28794f40257b5f660596a3e/packages/flutter_tools/lib/src/ios/devices.dart#L1269-L1277).

Related Issue: #15072
Related PRs: #118104, #118895, #60623