During the final episode of Loki Season 1, after Loki and Sylvie enter the Citadel, He Who Remains sends Miss Minutes to
frighten the crap out of the audience negotiate with the pair of them. She tells them that He Who Remains is willing to reinsert them into the timeline, and even rewrite future events to their benefit, such as allowing Loki to kill Thanos and claim the Infinity Gauntlet.
But the more I think about the offer, the less it makes sense. The whole reason He Who Remains invited them there was because he was tired of dictating the timeline and wanted them to either kill him or take over from him. If Loki and Sylvie had accepted the offer, it would have meant continuing with the role instead, and he would have had even more work to do in order to write them and their wishes into reality.
Furthermore, it's made clear during their eventual confrontation that — up until the threshold - He Who Remains has planned out all their actions in advance. So he already knew that they'd reject the offer, because he himself had dictated so.
The offer doesn't even work as a demonstration of his power, because in the light of the above points, it's completely hollow. He knows they won't accept it, and even if they did, it wouldn't make sense for him to actually fulfil it.