I'm likely not the target audience, but I personally see "client-only" as a disadvantage. Ultimately I use VS Code to stand up devcontainers on my laptop, but I sometimes need to do dev work on my iPad and don't want to pay for Github Codespaces. Gitpod has worked for me in the past and I've gotten Coder setup.
Maybe this will be nice to get Jetbrains IDEs working with the devcontainer standard, since IIRC they don't support this at the moment