You should watch the Final Fantasy XV movie and anime before

Final Fantasy: Unlimited (TV Series 2001–2002) - IMDb

The Making Of Final Fantasy XV Over 10 Years

Gamer Escape: Gaming News, Reviews, Wikis, and Podcasts

BROTHERHOOD FINAL FANTASY XV – Episode 2: “Dogged Runner”

Brotherhood Final Fantasy XV – Episode 3 “Sword and Shield” now online - Nova Crystallis

Brotherhood Final Fantasy XV - Episode 4 (multi-language subtitles): “Bittersweet Memories”

Final Fantasy XV Standard Edition Xbox One 91502 - Best Buy

So if i play FFXV following the chronological order (as in the picture) will it spoil the upcoming events for me? And do you suggest me to play in a different order

Square Enix Releases Kingsglaive: Final Fantasy XV on Ultra Blu-ray 4k – OTAQUEST

Brotherhood: Final Fantasy XV - IGN

Kingsglaive: Final Fantasy XV Review - Enjoyable, But Not Quite Memorable

Brotherhood: Final Fantasy XV - streaming online