Pokemon legends arceus is obviously similar in places to breath of the wild, but i also think that setup plays much more to what i what i enjoy about pokemon than botw does to what i enjoy about zelda... zelda to me is about solving dungeons and following an engaging/dramatic story, which are both elements that the open world setup doesnt add anything to or even hinders in places (theres much less proper dungeons and theyre all very similar in theming, and the story is shorter and not experienced in a linear fashion); so while i immensely enjoyed exploring the open world, i dont have a desire to have every zelda game be like that from now on
PLA on the other hand as far as i played is structured entirely around catching pokemon and filling your pokedex, which the huge explorable world makes extremely engaging... my favourite part of the mainline games' postgame, but made into the core of the gameplay, im having a lot of fun so far (people who really enjoy the battling/tactics might be frustrated though)