Cannot reliably search Videos in Stream Search.

It appears that microsoft stream video contant wont be included in the managed metadata service, or is not included in the crawl for search. The file type of Microsoft Video was Cloud_Video. I found I could add all kinds of metadata columns to the content type and it was then searchable in every way. Up until that time, I had the same issues I now have with Microsoft stream. Its not searchable even by filename. Whether part word  or otherwise..

I think, when they cut over Microsoft Video into Microsoft Stream this will come together. I think I'll need to dive into the documentation some stage.