System core

vendor.qti.iwlan

Risk: With care
Source: Third party
What it is: System core

What it is

Used for VoLTE/VoWifi (Wifi-calling)

IwLAN = Interworking wLAN.

Support for mobile data offloading (use of complementary network technologies for delivering data originally targeted for cellular networks)

It means your phone will use the Wi-Fi connection instead of the cellular data connection.

https://en.wikipedia.org/wiki/Mobile_data_offloading

Commands

adb shell pm uninstall --user 0 vendor.qti.iwlan

To put it back:

adb shell cmd package install-existing vendor.qti.iwlan

Every removal listed here is per-user only: the system image is untouched, and the restore command puts the app back from the copy already on the device. Nothing is downloaded.

This is not the directory. Here we say what a package is in general; what happens on your particular television is on your model's entry, and that one wins. The same package can be dead weight on one set and hold the home screen up on another.