I must have pressed a wrong combination of keys with my crooked fingers which caused the version control tab to disappear from the sidebar.
Then I found source control tab somewhere in VSCode, dragged it into the sidebar, it shows the changes, however, the icon is completely different and also it doesn't show the number of current changes.
What happened? In the below screenshot the yellow icon is what I have for SCM now.
From version 1.46 it is now possible to drag and drop panels and views
If a panel/view is not in a spot you want and you want it back in its original place you can Right Click on the panel/view header and choose Reset Location.