Please note that there are reports of audio issues with iOS Safari 13 & 14. Some sources report that approximately 5% of connections suffer audio issues with iOS Safari 14.2.
Reports
* https://bugs.webkit.org/show_bug.cgi?id=218762
* https://bugs.webkit.org/show_bug.cgi?id=209594
* https://twitter.com/daginge/status/1334480850231185408
These known issues are reported fixed in iOS Safari 14.3, so it is recommended that people using the affected version upgrade as soon as possible.