DPI in android. Drawable resources. What do you advise?

Question

Android

There are several graphic resources for the application. Drawn in a vector, but saved in .png
format With the help of the Resizer program, I adjusted the pictures for ldpi, mdpi, hdpi, xhdpi, xxhdpi, threw them into the corresponding drawable folders. Was there any point in this action?
As far as I know, android, if there is at least one picture, for example, in an hdpi folder, will adjust it for other screen densities at the expense of quality. Did I achieve the same effect with the help of the Resizer program? If nothing had changed in quality, if I had ONLY xxhdpi resources, I would have one good plus. Prefabricated resources take up more memory, as much as an application of this type should not take up.
What is the point of the question:If I make resources for xxhdpi only, will Android fit them on the right screens? And will the quality not be lame, compared to manually resizing the pictures?

Answer 1

You made the application a little faster and made it consume less precious RAM. The size of the apk has certainly increased, but now nobody cares.