Compose is installed individually for every environment. When you install Compose, it’s content model is created in the environment that you are currently working in.
You can switch to a different space or environment when logged in to Compose. If Compose wasn’t installed in that space/environment, you will be prompted to install it.
NOTE: We recommend using Compose for new projects and installing it in a space where there is no existing content. This way you won’t risk mixing up content from different projects and breaking the production.