I have pasted the share URL into my wordpress page using oEmbed. The video does not fill the container size - it is smaller, and when I click the fill fullscreen icon it does not go to full screen. It makes the player wider, but not taller. Please see photos.
@Davy_Stiles, I have checked the WordPress oEmbed to a good extent. And we have already raised a request with the WordPress team to fix it. You can find the details here - https://core.trac.wordpress.org/ticket/60182, you can bump up this thread with your need, that makes them move this fast.
Meanwhile, I would recommend you to use the Embed block to add the video and that should work fine.
I am using Elementor builder and the ACF plugin (advanced custom fields) and I don’t see the Embed as an option on either. I tried just a text block with the gumlet url and it shows the same way.