Questions about the 5G Network Slicing

Q1) For the COTS (Commercial Off the Shelf) handsets support 5G SA, can these devices support carrying the slice ID, so that the handset login network can go to the correct slice ID instead of the default slice ID? ( Any device manufacturers have released statements or documentation indicating their support for network slicing in their 5G SA terminals? )

Q2)) Network Entity console level (command level). I suppose it can check all the things under the command level. Is it possible to separate the checking for different slice IDs by different user login/privilege?

Q3) Can different slice IDs use different hardware? For example, slice ID one with its own hardware, and slide ID two with a set that totally separate from slice ID one.