Quote from jetawa3523@irahada.com on March 28, 2021, 8:06 pm

Seems like it works from time to time. Most of my tries – it pastes like a link, not like an embed video. No clue why. Maybe it is an editor bug. Same does with Instagram posts paste / Twitter and so on

COSTA RICA IN 4K 60fps HDR (ULTRA HD) – YouTube

UPDATE. If you make a right-click, choose “insert as text” – so it will work fine with all embeds. By default browsers “insert as a link” and so it shows like links, not embed structures.. Now I’m in search of the fix to this bug to make embeds with default paste