If you want a true Fallout game, play 1,2 or New Vegas.
Spin-offs from a different developer who has a clear lack of understanding of the tone and atmosphere of the classics, the Brotherhood of Steel, the Super Mutants, the reactivity/choices & consequences a proper FO game should have...not to mention Bethesda's absolute crap-tier writing and inability to deliver black humor the series is so well known for.