Interactive Video: IFrame flickering in Chrome - Can I disable scrollbar?

We have a problem with Interactive Video contents embedded in IFrames on our platform. The IFrame's scrollbar keeps appearing/dissappearing quickly, so that the embedded video seems to flicker. We observe this in Chrome on different plaforms. I realize that the problem is not necessarily in the H5P elements, but I'm posting my question in this sub-forum anyway, since only the Interactive Video content type seems to be affected.

Our IFrames are limited in width, but not in height. If I'm guessing correctly, this allows me to simply generally disable the scrollbar. A first attempt with scrolling="no" was successful.

Would suppressing the scrollbar be a good idea? Is there perhaps another approach - also with regard to the facts that only this content type is affected and I don't have any clue about the root cause yet?

Content types: 

Using scrolling="no" is in the docs (search for "scrolling") even, so I think that's the way to go.