Maybe you mean Android 16? I checked Android 15 w/ LineageOS and do not see the option there. edit: apparently this only just released on LineageOS 22.2. Als

Maybe you mean Android 16? I checked Android 15 w/ LineageOS and do not see the option there. edit: apparently this only just released on LineageOS 22.2. Also your hardware needs to support pKVM as you mentioned, which means only recent devices (only Pixels currently?).