https://www.cbr.com/lotr-rings-of-powers-flashback-did-not-create-sauron-plot-hole/

The second season of Prime Video's The Lord of the Rings: The Rings of Power (https://www.cbr.com/tag/the-lord-of-the-rings-the-rings-of-power/) seemingly contradicted the first, but there is an explanation for this.