Less of a bug but definately a quality of life issue.
On playstation 4, when holding breath in standing or kneeling (not prone), the is the ability to move too easily out of breath hold with slight movement on the left stick.
Because the breath hold is a left stick button push, depending on stick sensitivity, it can make breath hold nearly impossible.
Either a toggle (preferre) to disable movement when breath hold is engaged, or the ability to control dead-zone /sensitivity on controllers would fix this issue.
Jason