I don't have resources, to conduct studies, this was just an impression from reading Wikipedia pages and random websearch. Major news publishers in my language seem to convey the image, that intelligence agency generally agree on the lab hypothesis. Not just as side topic, but as the settled mainstream opinion. (The links were already shared here, that's how I read them in the first place.)

Yet the comments here seem to indicate, that that would be not the case from an US-centric perspective even if the publishers in my language claim it comes from the US intelligence agencies. And indeed that seems to be the tenor to a larger percentage in English publications.

> I have no idea what “ whether there are still in service or not.” means

Officials that are still in office seem to it's fringe to say it comes out of a lab, while does that are retired seem to claim, that it is obvious. Even if these are the identical person at different times.