What does and does not change after Ganon [contains endboss spoilers and parts of the credits]

Additional notes:

Nago is a giant boar appearing in the movie Princess Mononoke, which has a LOT of interesting parallels to BotW. If you haven't seen it already, I strongly recommend it - but don't watch it with small children, as some of the scenes are a bit too gory for younger audiences.

An in-depth guide for the enemy/weapon scaling mechanic can be found here:   / about_difficulty_scaling_for_enemies_and_w...  

The "Defeat Ganon" un-completing itself is the only thing that slightly annoys me. They wouldn't even have had to change the quest text or any dialogue - just the checkmark staying "completed" would have been enough. As it is now, you'll always have that annoying "X out of Y quests completed" even if you do everything else.

Two additional pictures unlocking in the Hateno Tech Lab are weapons instead of enemies: The Master Sword and Bow of Light respectively. I guess Nintendo didn't want to spoil what those look like, in case someone buys the full compendium before finishing the story. The same goes for the bosses not being revealed too early.

Blights fought inside the Sanctum are even harder than inside the Divine Beasts, as each of them gets a full 2k HP instead of the convenient health point scaling. Source:   / psa_blight_hps_scale_depending_on_story  

Kilton's "quest" is a bit confusing. It does not appear in the quest log despite being something that you can call a long-term goal instead of a quick fetch quest. And the "DEFEATED" star only shows up if you have killed the miniboss in question AND talked to Kilton about this specific enemy type. During this video I beat Ganon, talked to Kilton only about Moldugas and assumed this unlocked the markers for the other two as well, but none of the Taluses and Hinoxes gained that "DEFEATED" star until I talked to Kilton again and picked their dialogue options as well. (The markers then showed up retroactively, no need to defeat those foes again. It's just a bit confusing if they're not there if you expect them).

On a related note, the minibosses encountered inside the Trial of the Sword do NOT count towards this. The only minibosses you'll need are the ones that appear in Hyrule's overworld, as well as the castle and Eventide Island because while those may be "special" locations, they're still part of the overworld. TotS however is an "illusory realm" - everything in there basically only happens inside Link's head.