Toppo stated in the manga that Jiren is stronger than Belmod, he did NOT mention Jiren is stronger than ALL Gods of Destruction, only Belmod. Anyone who believes Toppo is referring to all Gods of Destruction is only considered headcanon.
Whis mention in the anime that Jiren is so strong that not even a God of Destruction can beat him, he did NOT mention ALL God of Destruction. We later found out he was only referring to Belmod during Tournament of Power. Anyone who believes Whis is referring to all Gods of Destruction is AGAIN using headcanon.
When Whis stated Belmod is stronger than Beerus, Beerus stated he only LOST in arm wrestling just like he did to Quitella in the manga. That does NOT mean he would LOSE to them in a FIGHT! That's like saying Post-Crisis Superman would lose to Raditz in a fight, because he can't EVEN lift up a planet on his own, yet he can BLOW up the star by striking it. Lifting strength =/= attack potency.
Going by the manga, Beerus is the only God of Destruction that knows Ultra Instinct, the GREATEST martial art technique EVER introduced in Dragon Ball Super, and all the Gods of Destruction has to team up on him just to hurt him. In a one-on-one fight, he would NOT lose to anyone of them in a fight.
Toriyama: "Currently I have no plans for Goku and Vegeta surpassing Beerus and Whis."
Toriyama DIRECTLY stated in the interview when Dragon Ball Super production was being made, he does NOT want Goku and Vegeta to surpass neither Beerus NOR Whis not matter how strong they get. So the fact that people still believe in the headcanon every time Goku and Vegeta gets a new transformation, they would surpass Whis let alone Beerus, is laughable.~ Beerus > Goku > Jiren. Until this day, he has not said anything otherwise.
"On the usual suspects: Goku is already pretty close to being a god, and Vegeta is desperately trying to catch up. This time Freeza shows particular growth. He wants to be on top, but is pondering how he can with Beerus and co. around. Is his ambition to defeat the Omni-King?!"
According to this statement from Herms, by the time of Dragon Ball Super: Broly, Goku is close to being a god, with Vegeta desperately trying to catch up with him. which further backs up that Jiren is not stronger than Beerus.
In end result, while completely ignoring Jiren fanbase's headcanon while using facts and statements, Jiren is NOT stronger than Beerus. Anyone who disagrees at this point is completely delusional. END OF DISCUSSION!!!