I have 4GB RAM. When I open Firefox, IntelliJ IDEA or VS Code and some other application my memory is about used up thus my machine hangs and I can't do anything. I can't even close any applications.
Date and time are shown in the top bar so that I can view it any time without any thing typing.
If I would view memory status in this way without typing anything then I can make a decision whether to open an application or whether this application may put my machine in hanging state or not.
Is it possible in Ubuntu 18.04 LTS?