@vivaldi_browser I really like your browser but I really struggle to use this browser due to the constant crashing, especially using youtube. I feel like I’m on my wits end because it just constantly crashes over and over even just trying to mess with the settings.
Try with the Troubleshooting steps, first to try in a guest profile. Most of this issues are caused by an extension. The Guest Profile put Vivaldi in default settings without extensions,so you can rule out these as cause. Anyway ask in the Forum, there are more people which can help you with it. Don’t forget to post also your sys specs, if you use some special security soft, etc., needed to be able to reproduce this issue which isn’t normal in Vivaldi. The last crash I had in Vivaldi was 10 years ago in the first version. Vivaldi can use Chrome extensions, but it isn’t Chrome and some extensions can enter in conflict with inbuild features or not working as expected. In the forum you can find a threat with incompatible extensions.