I would not be surprised if 2022 is is his last year on the tour. To be honest, I am ready for him to retire because I want him to enjoy life outside of tennis. Of course, I still want him to win RG 2022, but after this tournament, I will not be surprised on any decision he makes with his team.
The difference I think for Rafa fans and, say, Federer fans, is that Federer fans (*some* of them at least) thought he was entitled to all the records and assumed Federer would end up on top. (Majors titles, weeks at #1, etc, etc). To some extent Novak fans have the same expectations for Novak.
In contrast, Rafa has been riddled with major injuries throughout his career; Pundits and fans have been announcing his demise for at least 15 years, and yes, 4 times in his career when he reached a Major final (2008 W, 2011 USO, 2012 AO, 2013 USO) he was not even able to play that Major the next year due to injuries, 2 of those times he was even the defending champ.
So Rafa fans have the scar tissue of so many breaks in his career/ momentum with those injuries... Therefore IMO the expectations of Rafa fans were always somewhat different, of course we wanted him to do well but in my wildest dreams I did not think he was going to end up having the
most longevity of all the Open Major winners, which technically he has. (Largest span of years between first and last Major won, most consecutive weeks top 10, etc,).
To me, whether he ended up with the most Majors wasn't really the most realistic goal to have. So if he retires win or lose Sunday, I'm good. If Novak passes him in Major titles so be it. It's not the wrist slashing like some Federer fans seem to have experienced.
Having said that, Rafa is quoted that while he has the motivation and the foot pain is manageable he wants to continue to play. Just this Roland Garros, he said the support of the crowd (which has not always been there) during the Novak match was something special for him. He lives for these moments, it's worth it for him to come back from yet another rehab so I'm good as long as he's good.
In a perfect world he would retire after the 2024 Summer Olympics at Roland Garros.