When I see posts like this, it only shows how little current generations know about native tooling, mostly because they only focus on FOSS stuff on GNU/Linux instead of what is available on other systems, or eventually paid for tooling.
The other issue is that most people are looking for cross-platform options outside the C/C++ ecosystem. While I understand the tradeoffs for cross-platform UX, the truth is that it's only the giant amount of money placed into browser development that has made it even remotely productive.
(Independently, I think we would be better off with a reinvention of the Java Web Start idea that disposes with the bad foundation we have for web applications, but that's a different blog post.)
It's documented as part of the official qt documentation https://doc.qt.io/GammaRay/ and is part of the commercial Qt for Automotive Suite.