Although I personally don't use it, it certainly is. Many people will have different personal and work accounts on certain services, and in this times, they will both be used on the same machine.

Except it definitely is related. Keeping personal browsing and work-related browsing separate without containers is near impossible. At one point I resorted to using different browsers for work vs. personal just to keep things separate.

It’s more related than most of the items on the list.

It allows you to load your work and personal tabs in different containers, or school and personal.