I am stuck in a similar scenario. I need to embed vimeo livestream sessions (which are iframes) into CPT’s built with ACF Fields. The Vimeo code is:
<div style="padding:56.25% 0 0 0;position:relative;"><iframe src="https://vimeo.com/event/XXXXXX/embed" frameborder="0" allow="autoplay; fullscreen" allowfullscreen style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></div>
And I’d like to have the ACF as only the src URL which is https://vimeo.com/event/XXXXXX/embed
@hube2 Do you have resources/links on how to build the function/shortcode you mentioned?