You know how some languages write left-to-right, and some rught-to-left? Endianness is that, for numbers.
Or another analogy is dates: 2025/12/31 is big endian, 31/12/2025 is little endian. And 12/31/2025 is middle endian. Which makes no sense at all because the middle is, by definition, not an end.
Vivaldi without any plugins also works. No ads. And I’m sure there are many more possible configurations. This article reads like the author thinks there’s only two browsers and two ad blockers.