How is the lore broken with these events? Numenor is involved in battles against Sauron, and ultimately the fate of Numenor culminates in its destruction with very specific characters escaping the calamity to carry on the story to the established narrative that is LotR. Nothing so far suggests that fate will change. Some of the details have been changed to accommodate the medium of a 5 season series because casting 15 different kings of Numenor in order to get from the forging of the rings to the destruction of Numenor would be absurd (especially when many of them were nothing but a name on a list with no narrative relevance whatsoever).
Halbrand very clearly fills the role of Annatar while giving it more narrative depth (disguise used to teach elves jewelcraft isn't an example of deep lore). It's Sauron either way, there are no details as to what he actually teaches them, he simply acts as the catalyst for the elves creating the rings. Nothing really changed there.
As for Galadriel's role, all she really contributes is the idea to make three. There's nothing in the lore to explain why Celebrimbor made three so any explanation works as long as the three elven rings are made. Again, nothing broken there.
So again, where does it all break?
I referenced the Silmarillion as well when you tried to cite a deep history for why Numenor (Tar-Minastir specifically) helped the elves in the fight against Sauron. It was one sentence with no real detail. The entirety of the events that cover the forging of the Rings and the subsequent battles is roughly six and a half pages in the version I have in front of me right now. In the context of real history, there are entire books that focus on a single event or battle. Rattling off a few names and covering events in one to two sentences isn't deep, rich history. The Silmarillion is a collection of notes, work in progress that was compiled posthumously. No matter how much you want to revere it, it's not a detailed account.
It's also just so ludicrous to me to say "just don't use the setting if you can't make it the way I want you to". There's nothing gained from your gatekeeping. If you don't like the adaptation or feel like it doesn't add anything to your enjoyment of the source material then that's fine. You can even criticize it if you want, whatever. But saying that other artists should be prevented from adapting the setting and the stories is just absurd.