I recently switched to it from Megalodon, and never looked back ever since! Don't get me wrong, Megalodon is also a great app but Moshidon just feels better imo.

Of the three layers, only the UI layer is closed-source. This means that roughly 92% of the browser's code is open-source coming from Chromium, 3% is open-source coming from us and only 5% is our UI closed-source code.

https://vivaldi.com/blog/vivaldi-browser-open-source/