In theory yes. In practice, just one ecosystem can be a big investment. Knowledge sharing, build tooling, libraries, be it third-party or yours. At least that'

In theory yes. In practice, just one ecosystem can be a big investment. Knowledge sharing, build tooling, libraries, be it third-party or yours. At least that's my experience building a lot of single page apps. That could be seen as a weakness of SPAs. With fully separated pages, it's easier to mix technologies.