One of the aspects that might make going back to traditional Zelda games difficult is the relatively limited number of things to do in these game. Like most early Zelda titles, the original Link's Awakening has only a few optional side quests to complete.
Amongst these side quests is the much-loved trading game. Here you start with an item that you give to an NPC in exchange for an item that another NPC needs. This continues until you get a rare item, but it isn't strictly necessary in Link's Awakening, which makes the reward for the quest not very memorable
The other primary side quest is seashell collecting, which does result in a powered-up sword like in the Oracle games. These two side quests are the extent of the optional content in Link's Awakening.
While it isn't completely fair to draw comparisons to Breath of the Wild, as this game was, of course, not a massive, open world game, most of the other games that followed Link's Awakening included a variety of optional tasks to complete. These side quests, such as the ring system in the Oracle games and filling out the Bomber's Notebook in Majora's Mask, gave players reasons to explore every last inch of those games.
With the variety of characters on the island of Link's Awakening, there’s a wealth of potential quest opportunities. This could include finding specific places and objects for Ulrira, a wider range of food quests for Papahl, or even tasks for the residents of the Animal Village (so they, y’know, actually have a reason to exist).