In the main event, Jon Moxley defeated Eddie Kingston in a "I quit" match to retain the AEW World Championship.

Due to the ongoing COVID-19 pandemic, the event was held at the promotion's home venue of Daily's Place in Jacksonville, Florida.

[7][8][9] Full Gear featured professional wrestling matches that involved different wrestlers from pre-existing scripted feuds and storylines.

[10] Storylines were produced on AEW's weekly television program, Dynamite, the supplementary online streaming show, Dark, and The Young Bucks' YouTube series Being The Elite.

On the September 23 episode of Dynamite, Jon Moxley retained the AEW World Championship over Eddie Kingston by making him pass out to a chokehold.

[13] On the September 30 episode of Dynamite, it was announced that there would be an eight-man single-elimination tournament culminating at Full Gear with the winner receiving a future AEW World Championship match.

Jungle Boy, Rey Fenix, Kenny Omega, Wardlow, Colt Cabana, Adam Page, Joey Janela, and Penta El Zero M were announced as participants.

[14][15] The tournament occurred over the following month with former tag team partners Omega and Page advancing to the final at Full Gear.

[16] After Cody wrestled Orange Cassidy to a time limit draw and retained the TNT Championship on the October 14 episode of Dynamite, it was announced that Darby Allin would challenge for the title at Full Gear.

[6] He reunited with Private Party (Isiah Kassidy and Marq Quen) as their manager, but was attacked backstage before their match on the September 16 episode of Dynamite.

[27] In the fourth match, Hikaru Shida defended the AEW Women's World Championship against Nyla Rose (accompanied by Vickie Guerrero).

[2] Justin Barrasso of Sports Illustrated said the event "surpassed expectations", Omega–Page was "outrageously good", Allin–Rhodes was the "biggest moment of Allin’s career", The Young Bucks–FTR "had a match of the night performance", and Moxley–Kingston was "not for the weak-hearted".

[28] Chris Bengel of CBSSports.com said the event "didn't disappoint", the storytelling for MJF–Jericho was "phenomenal", The Young Bucks–FTR was "arguably one of the best matches in quite some time", and Moxley–Kingston was "entertaining".

[31] Joseph Staszewski of New York Post said AEW "hit a ton of high notes" at the event, Hardy–Guevara "had its fun moments", The Young Bucks–FTR "delivered a love letter to tag team wrestling in their long-awaited dream match that lived up to all the hype", and Moxley–Kingston was "brutal and at times uncomfortable".

[32] Jason Powell stated that Full Gear "looked like a great show on paper and it mostly lived up to [his] expectations", except for the Hardy–Guevara match.