Chainsaws are all rated for vibration, and the less vibration they produce, then the longer you can use them within the EU Vibration Directive. Professional saws allow the longest exposure. That's why pros don't use cheap saws.
That has implications for long-distance cycling. Padded bars help, but the forgotten factor is the effect of vibration on feet, which are more directly connected to road vibration. Tyre pressures have the most bearing on vibration, and that leads to using bigger tyres.
Sorry but this is irrelevant unless you can show me that the vibration from the road is of the same frequency and amplitude as that from a chainsaw. In addition you need to look at a triaxial weighted average over a number of years. Just because it is vibration does not mean it is dangerous.
It would be hard to disentangle the cumulative effects of chainsaw use, motorcycling and cycling in my case. I'm self-employed, so I've only got myself to blame for my Raynaud's/VFW.
One common feature between the chainsaw use and the cycling is being contracted to meet deadlines regardless of weather. That's within the context of PBP qualification, where you can end up riding in poor weather conditions. That's when all the factors discussed upthread come into play; clothing management being one of the most important. The other main factors are the amount of vibration coming through the bars, the length of exposure to that vibration, and the influence of fatigue on posture.
Employers have a duty of care to consider these sort of factors, to provide PPE, and to inform their employees about the risks. As someone who's Googled VFW, I get ambulance-chasing ads to get me to claim against my employer, but that's me. So all I can do is assess the effects of various bits of kit, and prioritise my various activities. The upshot is that I'm unlikely to commit myself to riding in poor weather, as that's likely to cause unpaid pain.