Content media field values are storing in different formats on J3 & J4.

[trananhmanh89]

Hi,
Correct if i'm wrong.
In J3, media field is storing by image url.

But j4, it's a JSON object.

...
This issue breaks my extension on j4.
A bit angry 😡

[joomdonation]

It is one of the backward incompatible change documented here https://docs.joomla.org/Potential_backward_compatibility_issues_in_Joomla_4#Media_Field .