Split tunneling does not allow adding or excluding Android Quick Share. Quick Share is a key Android system feature for transferring files between the phone(s) and a laptop. Since it is a system app, Proton VPN does not provide a way to exclude it from VPN filtering or add specific rules for it.

Steps to reproduce:

1. Enable Proton VPN on Android.
2. Open Split Tunneling settings.
3. Try to add or exclude Quick Share.
4. Attempt to transfer files to a laptop using Quick Share.

Expected behavior:
Quick Share should be available in Split Tunneling settings, or there should be a way to create rules for it so file transfers can work while VPN is enabled.

Actual behavior:
Quick Share cannot be added or excluded because it is treated as a system app. File transfer requires disabling the VPN every time.

Impact:
This is critical because users must turn off VPN whenever they need to transfer files using Quick Share.