I contacted support several weeks ago to let you know the embed code for youtube is not working but got no response. I have to add allow="autoplay" to the iframe code so that Edge and chrome will play the iframe. That's ok for me but others trying to get the embed code would not know to make the change. Needs to be added to the code.
Replied by Administrator on topic Embed Code Not Working
My sincere apologies for any inconvenience caused.
I had double-checked all our emails carefully and to be honest, I do not find your email regarding this. I'm afraid it has been blocked somewhere. But, our latest Joomla 4 version already includes this attribute. I believe you should be using our Joomla 3 version. Thanks for bringing this to and I have taken note of this now. So, I promise that our next Joomla 3 version would include this fix.