How to install plugins/scripts in folders?

[Krikor]

Hi there!

I always used the installation of my plugins/scripts creating a custom folder (MyPlugins) in C:\Gimp-2.10.32_Portable_32-64bit-Win\Preferences\plug-ins\MyPlugins and inside it I insert the plugins; as the image below:
   
Is there any mandatory way to install plugins / scripts in folders?
Inside folders? Names without spaces?

What is the official way to add plugins/scripts to the directory in Preferences?

Note, that the way I've done it (see image above) the plugins/scripts work.

However, I'm having problems with the new version 2.10.32 Samj's Portable, and apparently the problem seems to go away when I remove my folders that contain my plugins and scripts (with all their contents).

Thanks.