You can set a difficulty option to the default, what it would be if there weren't a choice. Changing the genre of a game isn't generally in the settings menu.

"Soulslike" is an absurdly nebulous term that just means "hard." It isn't a genre. It gets applied to games of every conceivable genre based solely on their difficulty. Battletoads is a Soulslike. Path of Exile is a Soulslike. Dead Cells is a Soulslike. Never mind that all of Fromsoft's Souls games are specifically action-adventure RPGs, which is a genre.