Initial language support is for...
What no C?
JetBrains has introduced remote development for its range of IDEs as well as previewing a new IDE called Fleet, which will form the basis for fresh tools covering all major programming languages. JetBrains has a core IDE used for the IntelliJ IDEA Java tool as well other IDEs such as Android Studio, the official programming …
CLion introduced remote C/C++ development a few months ago but I think it was the last of the IntelliJ-based IDEs to do so but makefiles aren't quite as well supported as CMakefiles and the project configuration menu is a maze of twisty passages, all alike.
So I guess C/C++ will be bringing up the rear for the Fleet IDEs as well.
In the end it all boils down to "this is my remote directory, this is my makefile, this is my build command" yet most IDEs manage to make remote projects more complicated than they need to be.
I like the idea of a whole development environment in the cloud but the difficult bit isn't the IDE or code share or even paired programming (most IDEs have that now and you don't need cloud for it). It's attaching to and interactively debugging your code while it's running. Sure, your debug environment could be in containers now but that kube config is finicky even when running locally. Running that same config on someone else's IDE-cloud-platform and making it play nice with the IDE isn't quite there. They require port forwarding through the thin client to your local machine. So, it's not completely dev-in-the-cloud. Not yet, anyway. Those are just technical things that eventually get ironed out.
It's good that VSCode has some competition but that competition is going to need to be open source, not for the ability to fork but to be seen to be developing in the open rather than behind closed doors.
I really do like the Jetbrains IDEs over VSCode, but as a private individual making no money from developing software, I find the JB pricing too steep for me when I can get most of the functionality from VSCode for free.
Good luck to them, but I think they've got a problem trying to sell something that is ostensibly free...
I like JetBrains IDEs too as they're very consistent and very feature rich but for personal use I can't justify it when VSCode, although not fantatsic, is good enough for personal projects.
I'm a non-dev coder and VSCode is good enough for work projects, serious work you need a serious IDE with plenty of intellisense type stuff to maximise your work output, VSCode is bloody awful for itellisense especially for non-MS stuff like Golang.