Everyone's experience different. Of course, if you're building a static blog, you don't need React on the front-end. However, my experience was mostly with interactivity-heavy applications, where all of these tools are not only indispensable, but often arguably not heavyweight enough.
This is such nonsense. Not everything is subjective or "an experience". There is objective truth is the world and the objective truth is your previous statement is almost never true. Unless you're operating at FAANG levels, that is, which almost nobody outside of FAANG is.
That is almost never true.