I want to second this request. Not only am I running into this issue, but even on php 8.1 I’m seeing
Deprecated: parse_url(): Passing null to parameter #1 ($url) of type string is deprecated?... unbounce/UBHTTP.php?on line?186
We really need this fixed as it litters the error logs with unnecessary messages. PHP 8.1 support runs out in 7 months so a move to PHP 8.2 is necessary in the next 6 months.