Very frequently, I notice that two different tabs (it seems to be always tabs that are side to side) have the same name and symbol, but when I open them I can confirm they are completely different. The browser just duplicates the name and symbol of one tab and apply to the one right next to it, it's very annoying

This tab is not Rainbow6BR Twitch Chanel. The duplicated symbol goes back to normal when I open the tab, that's why the symbol here is indeed from stack overflow

I think the duplicated tab is always a video player tab, like a YouTube video or a Twitch chanel, don't remember it happening with other types of tabs.

Any help will be appreciated!

Couple days ago this problem simply popped out of nowhere to me. When using the forced dark theme, there are some images that also have their colors switched, this was not happening before. I formatted my computer last week and it's still happening. I tried updating the browser, using a clean profile directory with no extensions, no flags, nothing different than the standard but it doesn't seem to work properly. Here are some examples:

When it looks like this with dark mode turned off:

Here's a link to the page, but it's not specific to this one, it happens very commonly.
I'm using Windows 10 and most recent Opera GX version (82.0.4227.44).