Thanks for asking.
The preview always renders fine, but when I tap it, the preview disappears (leaves a black box) and it opens a Google tracked URL like this: https://www.google.com/sorry/index?continue=https://www.youtube.com/embed/wzY2fV4Mp3U%3Fautoplay%3D1%26fs%3D1%26iv_load_policy%3D3%26loop%3D1&q=EgSplu5oGIGqqdMGIjAz-t7-OHNycR7HTSo6_T7IpHs2qX0SX5dcOIaIaVpPu0glaY5rN6E1v7yelbfLc4oyCT5yUmVDY25kaloBQw
At this point I have no way to get to the video, because the link was removed from the note too.
This presumably happens because I don't have YouTube (or any Google malware) installed. It's just a weird dependency to have on a freedom tech client.