My memories are fuzzy and incomplete, but I remember that nothing ever happened because there was a big uproar from manufacturers. They demanded "proof" and threatened litigation. The problem with tests is that you can create a lot of questions about procedures, for example, did you test just after descaling? First shot in the morning after letting water rest in the pipes overnight? Then there's discussion about "this is so little water, just a tiny espresso, so the amounts are smaller than in drinking water which you drink by the liter so the thresholds don't really apply". Basically, the lab would have to fight the manufacturers in court, so the whole thing was dropped silently.
I still have a 2012 Rancilio Sylvia entrance-level portafilter machine, almost unused, that I had tested by my Bavarian city's own water lab, with a sample taking procedure agreed upon with the leader of that lab (they did not have any procedures for a citizen who wanted something tested but did not want to turn me away, so the head of the lab himself took time to deal with my request). The lead values greatly exceeded the allowed limits. I don't think it would be any different with a current model. I ended up with a copper-based Vibiemme, and now I have a stainless steel based Ascaso Steel PID Uno that was designed with being environmentally flawless in mind.
Most, or just many?, people don't care, however. I found plenty of people who wanted to take my Rancilio Silvia, but I refused because I don't want this lead-laden piece of junk in use by anyone, even if they take it willingly despite knowing of the problem.
The 2013 report: https://www.deutschlandfunk.de/studie-teure-espressomaschine... (German article from 2013, website is from a public German state radio)