Re: Oh really?
actually... the number of SIMs that can be concealed is unlimited if you also count eSIMs - these are just digital certificates and they are only limited by the storage space available on the device (more specifically on the secure element chip)
so even if one removes the obvious physical SIM card, with modern devices that does not mean that the connection to the mothership is now broken, there might be one ore more eSIMs configured as backup in the case that the primary SIM is not working.