Thank you vey much for your comment. It is a great reference source for research on the subject of taming gravity! Again, thanks so much! I’ll be using it for more post here on Taming Gravity.

The best proof of anti-gravity comes from LAB Experiments: Alzofon experiment 1994, using microwaves DNO (see https://vixra.org/author/lucian_m_ionescu), and from Ning Li, Podlekov experiments using superconductivity.
The Cosmological data is too much prone to interpretations according to one theory or another (limitations of GR, “dark stuff” concepts, cosmological constant etc.)