There is some evidence for hormesis - but yes no model is proven right now. LNT is the most conservative model and part of why it sticks around.
A good primer: https://pmc.ncbi.nlm.nih.gov/articles/PMC2477686/
LNT does also damage, as people refusing necessary CT scans or countries switching of nuclear power because of fear.
LNT does also damage, as people refusing necessary CT scans or countries switching of nuclear power because of fear.