Here's an article on the amendment with some more explanation, if you're not inclined to parse that document.

Fundamentally, the new language proposed for inclusion in the 2023 NDAA focuses on reporting procedures related to UAP, along with ensuring transparency on information the Pentagon collects about unrecognized aerial objects encountered by members of the armed forces. The bill’s language calls for ensuring that data collected about UAP is shared with the UAP Task Force’s successor, the Airborne Object Identification Management and Synchronization Group (AOIMSG), as well as by offering protections for those who come forward with such information.

Among the key elements included within the bill’s language are takeaways that include:

• Nondisclosure orders and written agreements will not prohibit the disclosure of UAP information to the UAPTF or the Office.
• That the Intelligence Community shall establish a system for reporting of UAP-related information, regardless of classification level, to the UAPTF or the Office.
• Language calling for the protection of witnesses that share UAP-related information from liability, as well as retaliation, for the breach of NDA.

In effect, this legislation would allow for witnesses or personnel, who have information or data at a higher classification level or SAP, to provide members of UAPTF or the Office with data that UAPTF are not cleared for or “read-into.” Additionally, by doing so, witnesses or personnel, who would otherwise be breaching their NDA by disclosing information, will no longer be found to be in breach, and therefore are free from prosecution or sanctions.