That report is interesting:
"UAP PROBABLY LACK A SINGLE EXPLANATION The UAP documented in this limited dataset demonstrate an array of aerial behaviors, reinforcing the possibility there are multiple types of UAP requiring different explanations. Our analysis of the data supports the construct that if and when individual UAP incidents are resolved they will fall into one of five potential explanatory categories: airborne clutter, natural atmospheric phenomena, USG or industry developmental programs, foreign adversary systems, and a catchall “other” bin. With the exception of the one instance where we determined with high confidence that the reported UAP was airborne clutter, specifically a deflating balloon, we currently lack sufficient information in our dataset to attribute incidents to specific explanations. Airborne Clutter: These objects include birds, balloons, recreational unmanned aerial vehicles (UAV), or airborne debris like plastic bags that muddle a scene and affect an operator’s ability to identify true targets, such as enemy aircraft. Natural Atmospheric Phenomena: Natural atmospheric phenomena includes ice crystals, moisture, and thermal fluctuations that may register on some infrared and radar systems. USG or Industry Developmental Programs: Some UAP observations could be attributable to developments and classified programs by U.S. entities. We were unable to confirm, however, that these systems accounted for any of the UAP reports we collected. Foreign Adversary Systems: Some UAP may be technologies deployed by China, Russia, another nation, or a non-governmental entity
Other: Although most of the UAP described in our dataset probably remain unidentified due to
limited data or challenges to collection processing or analysis, we may require additional
scientific knowledge to successfully collect on, analyze and characterize some of them. We
would group such objects in this category pending scientific advances that allowed us to better
understand them. The UAPTF intends to focus additional analysis on the small number of cases
where a UAP appeared to display unusual flight characteristics or signature management. "
https://www.dni.gov/files/ODNI/documents/assessments/Prelimary-Assessment-UAP-20210625.pdf
I do not see spacecraft in that report. Where do you see spacecraft there?