Julyan vs Zenos

[Rongway]

Probably some kind of pseudo-canon that you're not supposed to think about too much.

The overarching idea, that you go on investigations with Hildy, probably accurate.
The background details like the stuff with Sil'dih's past and the zombies, probably accurate.
The specific character moments like Godbert throwing his son into low earth orbit, probably not so accurate.

This is exactly how I interpret it.
The identities and personalities of everyone involved and the events that transpire are canon. Exaggerated facial expressions, body contortions, unbelievably survivable flights/falls/impacts, credits, curtain calls, and other comedic shenanigans are comedic shenanigans added to the story by whoever has chronicled our adventures, to entertain posterity.

Canonically, the WoL solos all those bosses.

Canonically, the WoL is smart enough to know when a Primal can't be reasoned with and when to have friends on call for backup. Journal entries as far back as ARR indicate that not all Primal fights are 1v1:

(Alphabetized to obfuscate story order)
(Not a complete list)

Bismarck:

Lakshmi:

Shinryu:

Shiva:

Susano:

[TheMightyMollusk]

It's hard to tell sometimes if you're actually bringing help or if the game is just lampshading that you're not doing the actual fighting solo. Susano's journal entry feels especially tongue-in-cheek. It's probably best to just chalk it up to gameplay mechanics and MST3K mantra it away.

[ChazNatlo]

It's hard to tell sometimes if you're actually bringing help or if the game is just lampshading that you're not doing the actual fighting solo. Susano's journal entry feels especially tongue-in-cheek. It's probably best to just chalk it up to gameplay mechanics and MST3K mantra it away.

It also gets tongue in cheek when you talk to Lyse before the fight. She asks you if any of your friends are on a far east fishing trip.

[TheMightyMollusk]

See also the entry for Bardam's Mettle.

[Jandor]

It also gets tongue in cheek when you talk to Lyse before the fight. She asks you if any of your friends are on a far east fishing trip.

Why wouldn't they be, at least three of them came over on the same boat (Sirensong sea.)

-----

In all seriousness though, most of the time the game doesn't mention friends either way, some of the time it mentions bringing people along, and once it outright says you face a primal solo.
You'd think if soloing everything was canon rather than personal interpretation the game would outright say it a tad more often than it does.

I tend to think that you winning the fight is canon (obviously,) but the specifics of how you won the fight are not.

[Thaciscokidd]

Gilgamesh as Zenos
Rin as WoL
Saber Alter as Julyan

[LaughingBanana]

See also the entry for Bardam's Mettle.

This is quite funny as it actually makes Cirina seems much stronger than Warrior of Light since, by all indications, she completed Bardam's Mettle solo, while WoL gotta cheat to do it, lol.

[Jandor]

This is quite funny as it actually makes Cirina seems much stronger than Warrior of Light since, by all indications, she completed Bardam's Mettle solo, while WoL gotta cheat to do it, lol.

Hey now, I didn't have to cheat. I invited my bros purely because it seemed like a fun thing to do.

[Lunalepsy]

I just thought of something! What do you guys think will happen if Hilderbrand's mother fights Zenos?

Something crazy!

[Kolsykol]

Plot twist, Julyan is the final boss of Endwalker.