At least many people ahead reached the depths of the astral world, causing Level 11 existences to vibrate in shock, dying gloriously and stirring up the Multidimensional Plane. They left a rich and colorful chapter in the ancient Age History Book.
As for Sauron, he merely visited and intimidated some powerful Gods and signed some relatively useless treaties with them, then went wandering around the Multidimensional Plane.
Apart from the nickname "First in the Pan-Plane," which serious strongmen regarded as completely insignificant, Sauron achieved nothing noteworthy until his death.
Sauron, relying on his high realm, borrowed a small group of barbarian tribesmen from his Heavenly World, promising to return them in abundance, but there was no follow-up.
