Before Fortnite went BR, Resistance & Killzone were already done. SOCOM and Warhawk/Starhawk were super extra dead due to Lightbox and Zipper closing, Halo was walking dead with Halo 5, and the developers of Battlefield had "no idea why players liked Bad Company 2", leading to the franchise being on life support.
Funny thing about complaining about trend chasing killing halo was halo also caused trend chasing,
But yeah it isn't fortnite's fault ms drove halo and gears off a cliff of Hermann "horny for horizon" Holst seems to have no interest a premiere fps for Sony,
Bit the trend chasing is as dumb as it was with halo and cod, fortnite players don't need another fortnite like experience, because they have fortnite
Anyway my thoughts on fortnite
I don't like it, don't like the gameplay and hate the art, but it doesn't bother me its popular,
People don't need to like what I like