Please do upload a complete new Enfold Folder like here: https://kriesi.at/support/topic/some-hints-and-advice-to-update-enfold/#post-1056107

Because: Pirated (Nulled) Themes do often includes malware or spyware.
so to be sure that there is no additional code in your enfold folder – this was my advice.

PS both sites are still on older versions: the one on 4.0.5 the other on 4.4.1

Yoast does it right if it does not count the backgrounds as images. these are in css not in the DOM as img tags.
Yoast only looks if all img tags have alt attributes.

the thing is – that background-images do not have alt tags – or do you see in your source code an image tag?
i can not believe that a seo tool (i use for bigger sites Yoast Seo – and others for smaller sites ) would find this as fault.
May i see the concerning site?

but you are sure, that you have inserted the higher resolution to your site?
on The image Alb element or other image based ALB Elements of Enfold – you can choose what resolution is shown f.e.:

there is no automatic load of the child-theme replacement files:
there is a child-theme functions.php snippet that induces the replacement: https://kriesi.at/documentation/enfold/intro-to-layout-builder/#add-elements-to-alb

the place then for the substitutes is: child-theme/shortcodes/

in this case i would overwrite the parent theme file – because it will be fixed in next update

What you always can do is not to use the google maps ALB Element – but the codeblock element and embed the iframe given from Google Maps ( there is an embed button on share the map )
The only thing to change there is the width to 100% and the wanted height !
Then insert to the codeblock element your borlabs short code and the iframe inbetween:

[borlabs-cookie id="googlemaps" type="content-blocker"]<iframe src="https://www.google.com/maps/embed?pb=!1m14!1m8!1m3!1d2524.0265485697782!2d7.0528674!3d50.7565414!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x47bf1e2abeab2637%3A0x2a80c2a108fded35!2sLudwig-Schopp-Stra%C3%9Fe%2027%2C%2053117%20Bonn!5e0!3m2!1sde!2sde!4v1572797232411!5m2!1sde!2sde" width="100%" height="600" frameborder="0" style="border:0;" allowfullscreen=""></iframe>[/borlabs-cookie]

And by the way – this could not be the correct usage of the font name in css? – with file-extension?

how to add a custom script to enfold – see here: https://kriesi.at/documentation/enfold/add-custom-js-or-php-script/#add-a-script-to-footer-section

or if it is a post with post ID (be carefull it is a class) like: .postid-2553

i changed the testpage to a similar gradient you like to use.
PS:
the normal w3c definition of angle is that the top position marks the 0deg and the count goes clockwise.
the other browser definitions : the horizontal right position is the 0deg and the angel is meassured counter clockwise.
so 45deg are on both coordinate systems the same but 35deg on the first is (90-35) = 55deg on the other.
on most cases the w3c will be enough ( but i usually add the webkit definition too /* safari5.1+,chrome10+ */ )

Please don’t ask why w3c set it this way – on mathematical coordinate systems the other is the most common in use.

but you see on my testpage – that there is a whole image as background to both grid elements?

the red arrow shows to the grid-row element
the green arrows show you inside the grid-row elements.
So if you have no background definition on the cells the grid-row element background is seen.
You see on my code there is a unique ID to that grid-row element – and to that unique ID i made a css rule for the background-image. If you know how to use developer tools of your browser you can see the code.

the link to your gradient is f.e. : https://angrytools.com/gradient/?0_f4c695,100_b7885f&0_100,100_100&l_35
but take background-image as attribute

my css on that page will be this way:

#with-background-image {
    background-image: -webkit-linear-gradient(35deg,#f4c695 0%,#b7885f 100%);
    background-image: linear-gradient(55deg, #f4c695 0%, #b7885f 100%);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: top center;
}

my first thought was the transparency – but if you haven’t i don’t know.

By the way – is there in the meanwhile a filter solution for setting the breadcrumb visiblilty even for transparent headers?
( the line 1060 on newest enfold:
` if(!empty($transparency)) $header[‘header_title_bar’] = ‘hidden_title_bar’;
`
was in that case commented out by me with a copy of the whole function ( avia_header_setting ) in child theme

sorry Iceman – : https://kriesi.at/support/topic/guenni007-now-says-goodbye-as-an-active-participant-of-this-forum/