I don't care about Rust, myself, but I've been happier with Jetbrains IDEs than anything else, and then my work pays for a universal license to all of their products anyway for me.
The existing open-source plugin, which we’ve been working on for a number of years, has served as the building block for RustRover. This plugin will remain open source and freely available on GitHub and the marketplace. However, moving forward, we will be investing our efforts into RustRover, which is closed source.