Latex macro package installation problem?

/video/av838234450/

-

The link above is version 20 19.

The following is an installation tutorial of texlive2020, which can be seen on Mile Mile.

-

Note: The 2020 version of texlive does not have install-tl-advanced.bat, just run install-tl-windows.bat directly.

Texstudio can be set to Chinese, and Baidu can set it.

I installed and watched these two tutorials at that time. You can see if there are any macros installed on them. I don't remember.