Vivaldi Desktop has not yet shipped these protections in Release, but we do see in our testing of preview builds (http://PrivacyTests.org/nightly) that the protections are enabled in Vivaldi Snapshot, so it seems likely they will be shipped in Release in the near future.
On Android, we see major progress as well (http://PrivacyTests.org/android)! For the first time, we see Chrome and Edge have shipped the same State Partitioning protections! DuckDuckGo, Opera, Vivaldi, and Yandex have not yet done so, however.