Opera updated and video playback got bad again so I installed :

chromium-codecs-ffmpeg-extra_99.0.4844.84-0ubuntu0.18.04.1_amd64

But no luck

My Opera Version : 86.0.4363.23

@linuc it worked, thanks!

Opera updated and video playback got bad again so I installed :

chromium-codecs-ffmpeg-extra_99.0.4844.84-0ubuntu0.18.04.1_amd64

But no luck

My Opera Version : 86.0.4363.23

@niepiekm I downloaded, installed the package you just linked and ran hold command too. Now my problem is solved, thanks.

@niepiekm Thanks for the tip. I tried installing the same package as yours but it did not let me. Maybe because my opera is based on Chrome/97.0.4692.99

@nathaniel I tried snap version but it has its unique problems. This was 2 years ago or more.

@dark-2011111 I know that there are some solutions but i will keep switching to other browsers until an official solution comes along.

This problem still persists and I have to switch to other browsers to play youtube live videos or twitter videos, amazing!

@ultravio1et It slowed down my browser experience too. But it is still worth it until I find a better solution.

I use the extension: Dark Reader. It makes all sites dark.

@exoplanet

I installed snap version to get rid of constant video codecs headache but it caused more problems than it solved. On top of opening applications problem now the problem of loss of saved passwords appeared. So I deleted the snap version and went back to regular opera.