HJL,
Regarding “Tails for MacBook Users: Anonymity for the Survivalist, by Losttribe”, almost every Mac made, since around 2006, has been Intel-based. From a name perspective, the products were renamed with the shift.
Earlier product names were PowerMac, iBook, or PowerBook.
Intel-based product names are: Mac Pro, MacBook, MacBook Pro, MacBook Air, et cetera.
The only two devices that didn’t get a name shift were the Mac Mini and the iMac. You can see full details at these wikipedia links, and to figure out which mac you have, you can go under the Apple Menu to “About this Mac” and it will tell you (see attached image) both the model as well as the processor type. – J.A.