YouTube link preview not showing up in WhatsApp Using WhatsApp version 2.20.207.12, YouTube version 15.47.36 on my Samsung Galaxy A30s with Android 10.
Previously (I remember this working in November) when I shared a link from YouTube in WhatsApp I'd get a preview containing an option to play the video

and clicking play would just play the video there

Recently, anytime I share a link from YouTube in WhatsApp, the message sent will only contain a link. This also happens if I use WhatsApp Web

I'm ok with not being able to play directly in WhatsApp, but how could I get a preview with at least a title pointing that the message is a video and showing its title?
The best solution I could find was to adapt the URL copied in the share button

https://youtu.be/bDPczGUovzE

to

https://youtube.com/embed/bDPczGUovzE

This is basically substituting youtu.be with youtube.com/embed leaving the last part (in this video, bDPczGUovzE) untouched.
So now we can see already a preview before even sending

Once sending it we'll see


Edit
As of today this issue is already fixed and Beta users of WhatsApp can already take advantage of it.