Since this morning July 29 the opera extension FVD Downloader,
found in the sections `downloads' has disappeared.
It used to be here : https://addons.opera.com/en/extensions/privacy_policy/fvd-video-downloader/
and was listed as number 16. of alltime popular addons :
https://extensionrank.com/opera

Whenever a new opera version is availabe I do a fast check on a dutch website npo.nl, to see whether live streaming and watching old programs work. On Ubuntu 18.04 all works fine in combination with chromium-codecs-ffmpeg-extra.
Ubuntu 18.04 :
chromium-codecs-ffmpeg-extra_87.0.4280.66-0ubuntu0.18.04.1_amd64.deb
opera-stable_73.0.3856.344_amd64.deb
Ubuntu 20.04 :
chromium-codecs-ffmpeg-extra_1%3a85.0.4183.83-0ubuntu0.20.04.2_amd64.deb
opera-stable_73.0.3856.344_amd64.deb (same version)
On Ubuntu 20.04 the DRM protected video content refuses to stream and or play.

Any tips how to get the newest opera to work properly on the most recent LTS edition of Ubuntu ?

Since this morning July 29 the opera extension FVD Downloader,
found in the sections `downloads' has disappeared.
It used to be here : https://addons.opera.com/en/extensions/privacy_policy/fvd-video-downloader/
and was listed as number 16. of alltime popular addons :
https://extensionrank.com/opera