dv said:

https://newscenter.lbl.gov/2024/04/17/scientists-discover-first-nitrogen-fixing-organelle/

Here’s a finding that is not more than a decade old.

Scientists Discover First Nitrogen-Fixing Organelle

April 17, 2024

After years of work, an international team found evidence that a once-independent nitrogen-fixing microbe has become a permanent resident within algae cells

In two recent papers, an international team of scientists describe the first known nitrogen-fixing organelle within a eukaryotic cell. The organelle is the fourth example in history of primary endosymbiosis – the process by which a prokaryotic cell is engulfed by a eukaryotic cell and evolves beyond symbiosis into an organelle.

Which is about the same event that I posted about. So what is your problem?