Two notes: 1. The ‘About Finder’ on my Swedish system only uses ‘Mac’ (‘Skrivbordshantering på Mac’ though the Apple people in Sweden have been notorious for bad translations, but they are somewhat better these days).
2. As a long-time Mac user I know you can change the name of the “HD”, but I also know it has sometimes caused problems doing so and therefore it generally is best left with the default name (I am always careful to get that right). It was especially a problem with Adobe Acrobat as it depended upon the HD drive being named that way to find its files, but guess they eventually fixed that, but it is still a good idea not changing that name nor and then as some program you install may register search paths based on its name.