In Hogwarts Legacy there are a ton of challenges to tackle. Some involve combat, some involve exploration, while others are tied to quests, Field Guide pages and the Room of Requirement. All you need to do for this is complete one of the tiers.

For instance, one of the tiers in the Room of Requirement relates to Rescuing Beasts. In order to get this trophy you just need to complete 1 tier. Not one category, just 1 tier.

And because 1 of those tiers under the Quests category is to do with main quests, this actually is an unmissable trophy, provided you complete the campaign.