Ok, thanks to clarify that.@VinJol for clarity, its generally not a problem to post youtube links to relevant content
But I don't think that video is relevant to be honest. The video description is;
"In this video, I go over one of the ways you can fix old aio or semi-open loop."
So you're starting from a position where the AIO is leaking. In truth, there's no evidence in there that suggests this is common or even likely on that particular style let alone on more modern AIOs.
(the obstacle of the language did not allow me at first to note these subtleties)