Both Harry and Dumbledore were the first owners of the Elder Wand who had no intention of truly wielding its power—therefore, they were the only ones who truly deserved it.

Source: https://screenrant.com/harry-potter-deathly-hallows-elder-wand-dumbledore-plan-explained/

Gregorovitch had bragged about owning the most powerful wand in the world, so many suspected that he was referring to the Elder Wand.

Source: https://www.cbr.com/harry-potter-fantastic-beasts-voldemort-grindelwald-meet/

However, Harry discovered one magical secret that can mend a broken wand: the Elder Wand.

Source: https://screenrant.com/harry-potter-hagrid-wand-broken-worked-reason/

In reality, the Elder Wand belonged to Draco, as he was the one to disarm Dumbledore in the Astronomy Tower.

Source: https://screenrant.com/harry-potter-voldemort-kill-snape-not-avada-kedavra-why/

Voldemort had power, but not the power of the Elder Wand.

Source: https://screenrant.com/harry-potter-why-voldemort-grindelwald-stronger/