I’m developing openvidu based app using React. On iOS Safari video is freezing with subscriber role at first frame. I saw that topic Screen Freezes (Iphone Safari IOS 13.5.1) and added hidden video tag as last child of body and button with const video = document.getElementById(‘hidden-video’).play(); but it doesn’t work. On other browsers it works fine, also it works fine on iOS Safari with Publisher role.
Your issue can be related with autoplay restrictions of iOS.