Any of the DLC absolutely critical?

[Dong Quixote]

So I just bought AC:O the night before last, and its dope as hell. I've really disliked all the previous titles but the changes to the combat and leveling system are extremely my ♥♥♥♥.

So while all the DLC is on sale, is any of it 100% dont-pass-this-up gotta have important or really good? I'm currently unemployed so I really value bang for my buck. With the whole marketplace / unbipoints system (that seems to basically sell weapons for like $2 lmao) I'd like to avoid getting microtransactioned to death but also not miss excellent content.

[AC Denton]

Both DLCs tie directly into post-story content detailing Bayek later in life, Aya also returns in The Hidden Ones. The DLC is kinda important and The Hidden Ones is used to further reinforce the need to work from the shadows.
If you can only get 1, get The Hidden Ones. I still reccomend both & The Curse of the Pharos has more content.
If you want education, Discovery mode is really good, purely educational though.

[Tiudyr645🧉]

Both DLCs are awesome. The Hidden Ones tells you what happened to Bayek, Aya and of course, the hidden ones, after the events of the main game. Is a short DLC but full of lore and worth the price.
The Curse of the Pharaohs hasn't got any "important" stuff to add to the story, but is quita fun, with larger Maps than the hidden ones, a lot of new enemies, bosses, and places to visit. If you can afford it, buy the seasson pass.

[JACKSin]

Critical? No. Good? Yeah.

[^_Kamomon_^]

The in game store's DLCs are not necessary. For the expansions, people have been saying it's quite good and you should just get the season pass.