I am an outlier here but I will say Wt, a C++ web toolkit. It is like developing a desktop application, server-side rendered, works even if JavaScript is disabled on client side, and includes lots of features. The final web app too feels like a desktop app even though it is not an SPA. Some of the things it can do is shown here: https://www.webtoolkit.eu/widgets

The whole https://www.webtoolkit.eu website is written in Wt.