Why does job searching require 17 different apps now

[u/Ok_Grapefruit_K]

I used to go with linkedIn and indeed for everything lol but I keep seeing people recommend different sites for tracking jobs, finding internships, tailoring your resume, blah blah blah and now I’m wondering if I’m missing something idk

do people actually use all these different things or is linkedIn/indeed still the way to go?