There are a lot of tangible benefits in using toolbox containers for development to the point that I don’t want to use anything else anymore. Even with a bunch of tricks at our disposal, there are still downsides. The containers are not complete sessions but rather try to integrate with the host session. If you’re working on something that is part of a session it might be possible to run a test suite and even more elaborate setups but running it fully integrated often becomes a problem.