Yes, but I'm concerned about the number of existing browser engines that have fallen by the wayside, as the project founders have become exhausted. The scope of such a project is incredibly easy to underestimate, and it has only ever gotten larger. Some examples: https://www.reddit.com/r/browsers/comments/124kphe/what_do_y...
The Firefox engine is great if you don't want something controlled by Google. And it's going to be much easier to develop plugins or extensions for that versus trying to write your own browser from scratch, which to be honest will probably cost hundreds of millions of dollars. If not more.
I do imagine tools like this being useful for something like web scraping, but it's never going to be an end user product.