Comment by homebrewer

> the limitation on "1 Window - 1 Project" is laughable in IDEA

There's no such limitation in IDEA. If your project consists of separate subprojects stored in subdirectories inside a single large directory, just open that directory in IDEA. Your subdirectories will work/look/feel like different projects, all within the same window, with global symbol search, support for attaching SQL resolution scopes (i.e. attaching different databases to different projects and/or paths within them and having correct autocomplete), etc.

One of the things I work on is such a project built from a dozen separate subprojects, some of them written in Java, one in PHP, one in JS/node, one in TS/React, two in Go, one in Python. Plus the usual stuff like Markdown, HTML, CSS, SQL, etc. It all integrates very nicely within the same window.

If they're stored in completely separate directories, and you want to combine them into a single window for some reason, it's still perfectly possible by attaching them as "modules" inside your project settings. It looks and feels exactly like the first case, even when projects are spread across the system.