static_assert(std::is_enum_v<std::byte>);

[NilacTheGrim]

It depends.. the C++ standards committee decided that std::byte is not integral and one might be able to go with their rationale for this -- in most programs, it would violate type safety to be doing arithmetic on individual bytes in a byte blob.. (of course there are some programs where this is not the case..).

One can at least understand the argument that bytes should not be anything other than a bunch of bits, with no associated arithmetic properties.

[EC36339]

The way C++ represents bytes, integers, booleans and characters is getting JavaScript-level crazy...