I tried to get something from that link but the abstract is too broad. Can you quote anything from the paper that could help someone understand without reading the whole thing?
I think the "time bomb" is in this sentence: "... some viral infections have been linked to an increased risk for the development of PD ..." with the context that we've all just been through a global pandemic.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9422946/