Common side effects of Kevzara include:

low white blood cell count (neutropenia),
increased ALT,
injection site redness,
upper respiratory infections,
nasal congestion,
runny nose,
sore throat,
urinary tract infections, and
low platelet counts (thrombocytopenia).

https://www.rxlist.com/kevzara-side-effects-drug-center.htm

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From early clinical trials studying leronlimab in the treatment of HIV, it is thought that possible side effects may include
diarrhea,
headache,
swollen lymph nodes,
high blood pressure, and
injection site reactions.

https://www.drugs.com/history/leronlimab.html


Left to the reader to draw their own conclusions