@guilhermeurenha This might be too late to change anything but I found a workaround. You can go to your own twitch chat (even if you don't stream) and type: "/block [username]" without the quotes, if you want to unblock them just do "/unblock [username]".
Here's a working way to get dark mode. Opera Gx added a new feature where you can force sites to dark mode by right-clicking and select “Force dark page” on the site.
Because the sidebar uses the official Facebook Messenger site, go to messenger.com and force dark page it. Then your sidebar will also apply dark mode.
I downloaded Opera GX for a very specific purpose, but also because I have been told that it is generally a better browser than Chrome, especially for gaming. However, according to task manager, Opera GX takes up on average 2-4x as much memory as Chrome does, and that's just comparing two completely new tabs.
I have CPU and Ram Limiter Enabled and set to the absolute lowest setting for both of them (1 GB Ram, 25% GPU; There's also the issue where both limiters are deactivated after closing all the Opera browser and I don't want that to happen). Opera GX is essentially a brand new browser for me, so I shouldn't have any extensions on it, so I'm a little confused why this browser seems to be less efficient than chrome. What's going on here?