I think this would be an amazing feature!
What it would do is that in the opera cleanup tab in the sidebar, it would let you close the tab to save resources, but leave the tab in the user interface alone to open it later.

@Wehyam I agree. I would absolutely love to able to use Tab Islands without the need of having a separate browser for gaming, and a separate browser for anything other than gaming. Its pretty weird how this isn't already a feature already.

I think we can vastly improve upon this idea by simply adding a way to add any website to the sitebar, via the sidebar settings. This will let us not only add the web version of discord to the sidebar, but also add specific channels, or even other websites.

I know this should be easy to implement, as features such as YouTube Music in the sidebar just opens the youtube music website.