Mixed Framework Website Building Using HTML For SEO Purposes

At the moment, we can build beautiful, feature-rich web apps. The problem is that these are 99% JavaScript and entirely invisible in search (even with the SEO tools recently announced like sitemap, robots etc). The elephant in the room here is that nothing is scalable without being visible online and you don’t get found using JS. Building a website is futile and running a website through Semrush or similar, zero on page text is found - no headers and a large list of SEO problems are flagged. It’s completely useless for ranking. This matter is pretty disabling and there appears to be no plan to remedy so users will hit a wall. Coupled with the inability to deploy as apps to the relative app stores, we have to start seeking platforms elsewhere.