Hope you are doing well! We were unable replicate the deviation in behavior on the latest version of Samsung Internet Browser (v 22.214.171.124). As you can see from the image below, the video has the defined height, is covered inside the box and does not cover up the text below.
We would like to request to update to the newest version of Samsung Internet Browser (v 126.96.36.199) and test out on a physical android device or on our Remote Test Lab.
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Samsung Developer Program