libSceShare technical debt

sceShareGetCurrentStatus (libSceShare) - validation (feature flag non-zero, status non-null) and the all-zero 16-byte status taken from the KytyPS5 reimplementation, not confirmed on a PS5 title; the meaning of the recording status values is unknown
sceShareGetRunningStatus (libSceShare) - only the first 32-bit word of the status is known: PPSA01317 treats bits 0x3c of it as a running share feature and gives the call a 40-byte buffer. The host never records or broadcasts, so it stores 0 in that word and leaves the rest untouched; a null status returns INVALID_PARAM by analogy with sceShareGetCurrentStatus
sceShareSetContentParamForApplicationTitle (libSceShare) - imported by PPSA12544's Unity plugins; the signature follows KytyPS5, not confirmed on a PS5 title. The application title is only checked for null, as KytyPS5 does, since nothing is captured

sceShareCaptureVideoClipExtended (libSceShare) - imported by PPSA12544's Share plugin; the signature (extended parameter, request id) and the answer follow KytyPS5, not confirmed on a PS5 title. Nothing is captured, so, like sceShareCaptureScreenshotExtended, it stores the invalid request id -1 when the pointer is not null and returns NOT_SUPPORTED without reading the extended parameter, whose layout is unknown