The clearest display of Frieza's new strength is his "fight" with Goku in the manga. In their first meeting, Black Frieza completely overpowered Ultra Instinct Goku. In fact, not only did he one-shot UI Goku, he also one-shot Ultra Ego Vegeta at the same time.

Toward the end of the Tournament of Power, Goku was able to channel into Ultra Instinct to fully complete it. Perfected Ultra Instinct is known by other names such as Mastered and Completed Ultra Instinct, and is still the apex of Goku's power.

Black Frieza OFFICIALLY Confirmed To Be WEAKER Than Beerus.

Black Frieza's power is astonishingly high, the extent of which, according to V-Jump, cannot be measured. The form puts Frieza on a strength threshold in proximity to those of Gods of Destruction and allowed him to easily knock out both Goku and Vegeta, who had reached the realm of the gods.