Some customer using Cloud don't want to turn on attachment syncing because it copies the data over to jira cloud (which has very limited capacity).
Can we add same feature that the jira server connector has in terms of a remote attachment links?
A valid use case, but we don't have any plan to implement at least until we get a few more similar requests.
Note that having this feature would require the JIRA users to have access to Salesforce. Please ask customers if this their intended setup.