The Apple Support Community will allow you to post a link to a video that is hosted elsewhere - such as YouTube.
If you believe that you have found a repeatable bug or other unexpected behaviour, you would be well advised to report it - as unless you and/or others do so, Apple will not necessarily be aware of the issue. When submitting your report, ensure that you include your iPad model and installed version of iPadOS within the body or your report. Don't rely upon the pick-list, as this is rarely up to date with current models or OS releases.
You can also reach out to Apple Support. You can contact the Support Team using the Support link at top-right or bottom-left of this page. Alternatively, you can initiate and manage your support cases from Apple devices using the excellent Apple Support App. If not already installed, the App can be downloaded from the App Store:
https://apps.apple.com/app/apple-support/id1130498044