Just look at the SARS-CoV-2 genome and it is clear that it was not engineered. We can rule out deliberate engineering or design intent with high certainty.

Low probability remains for evolution of a SARS-CoV-2 ancestor and subsequent 'leak' from a lab.

https://medium.com/advances-in-biological-science/explained-the-hard-evidence-why-the-sars-cov-2-genome-was-not-engineered-and-unlikely-leaked-f3d6fbb10ff9