I included the EPA link because it specifically mentions not to use bleach, but instead a mold-killing detergent or agent, and also mentions that cleanup isn’t enough: the underlying cause needs to be addressed.

Use of white cleaning grade vinegar as an agent which kills many types of mold is covered here, if that’s more useful to you:

https://www.servicemaster-restoration-cleaning.com/mold-myths/

Bleach doesn’t kill the roots of mold, only the surface.

Vinegar or a mold-specific treatment would kill the mold thoroughly, but until you find the source of the moisture (eg is a sprinkler pointed at that wall?? broken gutter? plumbing issue??) you’re masking the symptoms, not fixing the cause.

https://www.epa.gov/mold/mold-cleanup-your-home

“Chocolate ice cream is not worth eating,” says the person who dislikes chocolate ice cream.

“Feel free to hand me your portion, then!” says the person who does (with a grin).

Do what you like. That’s what hobbies are for.