Changing the “artist separator” lets you control how these will split. Ideally you probably want to change your tags to not use commas, since it is not uncommon to have a comma in an actual Artist name.
You wouldn’t want “Earth, Wind, and Fire” (which is one artist) to be split into 3 but it’s written the same as your “Joji, Corbin” so there’s no way to make both work. Either swap the tags to semi-colons (like “Joji; Corbin” which will have less issues) or ideally to a multi-value field (look up how that works for your tag editor).