The "advantage" and original purpose of euclidean zoning was segregation and the exclusion of racial minorities.[0][1] You'll still hear these benefits repeated in euphemisms in this very thread as "space, safety, and school districts."
I'd say it's no longer specifically about race anymore, but about socioeconomic class overall. Especially with the ease of being able to search household income statistics for various zip codes and whatnot.
A secondary reason is also due to the increasing issues of mentally ill and drug addicted homeless. For various reasons, the simplest way to minimize interacting with the aforementioned groups is to live in a far flung suburb, where everything is spaced out, separated by highways, and not conducive to homeless people.
[0] https://wwnorton.com/books/The-Color-of-Law/
[1] https://www.learningforjustice.org/sites/default/files/2019-...