Not interested in PHP in the slightest, but how is this myth still going around?
Wikipedia, Pornhub, Facebook (initially at least) were all built on PHP. There are hundreds of other examples.
Laravel nowadays has an outstanding reputation and I doubt it's performance is lagging so far behind Django for example.
More generally, after all these years I still need to see a story of a startup that failed because they chose the wrong stack. There are some blog posts with spurious claims in this sense, but really, when has a startup with good product-market fit and a finely designed product ever failed because they chose PHP instead of something else?