Ironically, the "new evidence" that emerged was in fact "old evidence" that was suppressed.
https://www.hsgac.senate.gov/media/reps/new-doc-drop-slack-m...
https://oversight.house.gov/release/classified-state-departm...
https://www.hsgac.senate.gov/media/reps/new-doc-drop-slack-m...
https://oversight.house.gov/release/classified-state-departm...
You are (mistakenly) substantiating it though: there has not been new evidence in favor of the lab leak in several years! You're right!
Meanwhile, evidence in favor of a natural origin has continued to pile up.