I would test this myself, but I'm unable to fully test webhooks due to VPN limitations.
I'm interested in monitoring changes to all files within an account. I believe V1 webhooks do this inherently, but I would rather use the V2 API. Would a webhook on a top level folder deliver events related to all files/folders underneath it, recursively?
If so, then I believe a single v2 webhook might accomplish my goal. If not, then I don't think v2 would be an option, due to the 1000 webhook limit, since there will be more than 1000 files within the app.