After installing the Analyst Workflow App there is an error about the memory utilization on the app host which is showing in the red

Memory required for the app is only 1200mb and there was around 20G available.

memory usage bar warning in the red

The memory usage bar in the red is not itself a problem, it is simply indicating a low memory issue for the user to mitigate. It does not stop you from installing apps if there is still enough memory available to do so.

When using UBA and Machine Learning, often the minimum requirements for virtual machines are not sufficient to also install a variety of other apps. Doubling the memory on the vm should take care of the problem.