This document defines an extension to the timestamp format defined in RFC 3339 for representing additional information, including a time zone. It updates RFC 3339 in the specific interpretation of the local offset Z, which is no longer understood to "imply that UTC is the preferred reference point for the specified time".

RFC 3339, the “alternative” to ISO 8061, was extended to RFC 9957, which also allows adding interpretative tags.

Sounds like unnecessary complexification to me. What is wrong if anything with “2024-04-26”?