I want to customize this part of Wordpress feeds:

<image>
<url>https://[example]/wp-content/uploads/cropped-logo-32x32.png</url>
<title>My Site</title>
<link>;/link>
<width>32</width>
<height>32</height></image>

There is a similar question with a wrong answer here. Changing media settings in wp-admin does not work.

I would like to change the image size or customize the entire part with a custom image URL for example.

Thank you