again: css: differentiate front page header and single post header

@dianoia: Hello there,
Go to => Appearance => Customize => Additional CSS and add the following CSS Code.

.home .custom-header .custom-header-content {
    display: none;
}

Let me know if this works out!
Kind Regards,
Skandha

@dianoia: Hello there,
You seem to have used the following code in the Additional CSS section

#page .custom-header-content.entry-content-wrapper.sections.header-media-section {
    background-image: url("https://imnebel.de/wp-content/uploads/2020/07/Logo-gross-transparent2.png"); 
    background-position: center; 
    background-repeat: no-repeat; 
    background-size: cover;
}

Add the code body:not(.home) ahead of #page in the above code so that it becomes
body:not(.home) #page .custom-header-content.entry-content-wrapper.sections.header-media-section

Let me know if this works out!
Kind Regards,
Skandha

@dianoia: Hello Jens, I hope I was able to resolve your issue. If it’s not too much trouble, I have a quick request: could you please leave an honest review?
https://wordpress.org/support/theme/catch-fullscreen/reviews/#new-post
Your review will help others know what to expect when they’re looking for the support I offer. Even a sentence or two would be hugely
appreciated. Thanks, and if there’s anything else at all that I can do to help, don’t hesitate to let me know. Have a good day! 🙂

Kind Regards,
Skandha

@dianoia: Thank you for your wonderful review Jens. Have a great weekend! 🙂

Kind Regards,
Skandha