Autoplay videos on cell phones

How do you get my cell phone to autoplay my videos? It works on the desktop and an iPad, but not my iPhone 14.

Here is my code I use in my Embed block.

<center>
  <video autoplay="autoplay" loop="true" width="550" muted="muted" controls>
    <source src="https://static1.squarespace.com/static/636d6fd9f542a10598b6bd24/t/63b7430ad3ac8054cc6b8e45/1672954637057/my_video_name.mp4" type="video/mp4"/>
  </video>
</center>

change this code

<video autoplay="autoplay" loop="true" width="550" muted="muted" controls>

to this

<video autoplay loop width="550px" muted controls>