@burnout426: I'm on Linux - maybe this is the problem

@burnout426: It looks like this on my computer: https://ibb.co/R70FfyP

Opera does not open RSS feeds well. just click
https://blogs.opera.com/desktop/feed/
I do not want to see the text. It should be open in the feed reader

On Linux, when using full screen (for example on YouTube), there is an additional, black frame on the top.
This is a very old error.

I am not able to get it on OpenSuse from https://rpm.opera.com/rpm

@ironbone: Sorry, it is possible to close it but why it opens for the first time. Then it is ok.
Maybe this is the problem of my old configuration.

Opening a chat in messenger also opens the user profile description. I do not need to see it every time. It is not possible to close it. It takes almost the whole display.

@pinheadlucas: Unpin all other tabs i.e. Messenger, Twitter ....
When they are pined the player does not work

@pogus: on my computer after checking player in
opera://settings/manageSidebar
it works without problems

The player does not work if any of the tabs (messenger, twitter, Instagram) are pin. Even if closed

@pogus: Now the player problem is solved.
If for example the Messenger is pin then (even if the messenger is closed) then the player does not work,

@ironbone: After one day the player stops to work

@pogus: In my case, the problem appears on all my computers (Linux Mac Windows) after synchronizing my settings. The possible solution is to start a new opera installation (delete the configuration and cash on your account). Then start Opera. Player works. If you set up the synchronizing disable synchronization os settings.