While the article is written by observability vendor, it contains an excellent information about wide events, without annoying advertisement of the vendor.

It is not written by an observability vendor, nor is it an advertisement. Source: I wrote it and do not work at an observability vendor: https://jeremymorrell.dev/about/

(I wrote it mostly so I could stop re-explaining this concept from first-principles and how to go about implementing it over-and-over again )