Webin demon slayer, zenitsu creating a 7th form of thunder breathing during his fight with kaigaku.
Here’s how it works.
Webthe former hashira, jigoro kuwajima also referred to as the roaring hashira because of his thunder breathing style, is widely known in the demon slayer.
Webso i think the thunder breath falls under the category of actually making the element because that would explain how in zenitsu’s fight against kaigaku the lighting.
Webthunder breathing is a breathing style that mimics lightning, specifically swift strikes and movements akin to lightning ripping through the sky, and replicates it with the user's.