I am not arguing against SPAs, but to prevent redownloading common page elements (menu bars, footers) you can use web components. I recently built a website usi

I am not arguing against SPAs, but to prevent redownloading common page elements (menu bars, footers) you can use web components. I recently built a website using web components for this purpose (official implementation of the university's official theme) and it was a good experience. Proper CDN caching means you only have to download them once.