Have some questions.

[bo-waleed]

I have 2018 13'' MBP.

1. When I go to Storage in 'About this Mac' there is a part that says 'Other volumes in container' that takes 4.97 GB, What is that ?

2. In finder when I go to Macintosh HD there is a folder named 'vm' that have a swap file 1.07 GB, What's this again ?

3. Which is better or which is the intended ? Closing Apps windows or quitting Apps completely ?
For example: should I always close Safari windows when I finish browsing or quit Safari ?

 

[Mitthrawnuruodo]

Not exact answers, but should be close enogh (I hope):
1. That is a couple of other partitions on your HD, for virtual memory, recovery mode, and other stuff™ like that.
2. VM = virtual memory, where the OS saves things that it wants to have in the working memory (RAM) but cannot fit (at least temporarily).
3. If you want to open a new window (within reasonable time), like you often want with Safari: Keep the app running; if not: quit it. (In practical use it won't really matter since most (small/medium sized) apps open up really quickly, and Mac OS is very good at managing memory.)