
John Cena’s character was always been about never giving up and being an all powerful superhero of a man. Throughout the whole year he did a retirement tour where he (in storyline) started to realize how age was catching up to him and his time was running out. So he turned into a bad guy for the first time ever, with the goal of ruining pro wrestling forever to get back at the fans who always complained abt him and never saw him as a human being (1/2).
Of course this was something he told himself to avoid confronting how much retirement was gonna hurt for him. During his villain run he started realizing how the fans loved him unconditionally and he came back to the light, now with the goal of making the wrestling industry better before his time runs out. He just had his final match against a villain wrestler named Gunther, who’s explicit goal was to make John Cena, the never give up guy, tap out of the match to build his ego and shit.
This gave Cena the chance to do one last persevering performance, turning into the classic Super Cena one final time as he escaped every hold and kicked out of every move. But close to the end of the match he started realizing his time was finally up, he fought until the end giving it his very all and more. And when he was put in a hold one final time, he just looked at the camera and smiled, tapping out not out of pain, but acceptance of his finality as a wrestler.
In general lines yes, but ngl there have been an insane amount of missteps to get here. Like Cena had to change motivations mid villain run because originallly he was tied to The Rock who ditched the storyline and never showed up, his turn back to being a good guy happened in a microphone segment and not told through the matches themselves, him becoming champion in a stinker match with help of fucking Travis Scott, and having a senseless rivalry with potential sex offender Brock Lesnar.