@cynical13 @ramon The purpose of Snapshots is to test new versions and report on new bugs/regressions. In recent Snapshots, we have enabled an experimental feature which improves the performance. However, it suppresses the Chromium prompt to keep a potentially unsafe file, causing the downloads to never finish. We are currently looking for a solution.
Unless you're willing to encounter similar issues by testing Snapshots, we recommend using the Stable version instead: https://vivaldi.com/blog/snapshot-vs-stable/