I received a request this morning to embed a video into a post. This is so easy I'm going to show how to drop in a video yourself instead. I'm posting this publicly instead of just replying to the DM in case anyone else is interested.
You just copy and paste the URL as text into your post and the forum software transforms it.
As an example here are two video URLs that are identical; I copied one and then pasted it twice, each on its own line. I edited the first one to remove the "h" so the software wouldn't recognize the text as a URL. You won't see the text of second; you will see an embedded video instead.
ttps://youtube.com/watch?v=jiDAea6l6sM
It is just slightly more complicated if you are viewing the video with the YouTube app. There you have to click the "Share" button and then the "Copy link" one. Then you paste that into your post. Here is a different video and the URL gotten for it using that method (again with the "h" removed so you can see the untransformed URL):
ttps://youtu.be/Npfl4cHJbCE?si=Ny2RzsxvzRct3eQQ
Note the "?si=Ny2RzsxvzRct3eQQ" at the end. That can be removed and I almost always do that but it is optional. I suspect it is some kind of tracking tag. Anyway, here are two app type URLs handled the same way as the browser ones above:
ttps://youtu.be/Npfl4cHJbCE