I Figured it out. Once I dial out the other screen with the speaker phone icon and hide option appears. If I get a call a banner with the speaker phone option appears to be select. I also found that if I hit the phone icon (green)) button twice, on the number pad, it will take me to the other...

I have an iPhone 13 and my speaker icon on the phone number pad is gone as well as the hide button. The background was also black not white. Could this be because of the most recent update? Or how do I get it back?