have you used the "link" function (ctrl + k). otherwise you still have the video function (but that doesn't work for me either)
As far as I understand your problem that your Youtube link is not seen as a link
Just gonna leave this here one more time for people having issues with shorts:
"You can easily change any YouTube Shorts video to a regular one yourself by modifying the URL. YouTube Shorts have a URL that looks like this: youtube.com/shorts/video-id-goes-here. Change shorts to v, and YouTube will load it in its normal video player. The modified URL should look like this: youtube.com/v/video-id-goes-here."
I did that a while back for my submission of the graphic landscape, which YT converted to a short without asking me. But it workes like a charm.
Thanks ! That's an even better solution. On my side I just created a vimeo profile and baste ! :)