How Vivaldi browser is different from Google Chrome

How Vivaldi browser is not different from Google Chrome? It's proprietary.

And that's enough reason for me to not consider it until every open alternative is dead in the water with no hope of resuscitation.

Further, either they cleaned up their act since [1] was published, or they have different definitions for 'zero tracking'.

[1]: https://spyware.neocities.org/articles/vivaldi.html