Migrating Video to Stream - when and how often do updates happen during migration?

Henning Strand  - I am at a similar stage in my migration from Office 365 Video to Stream (test tenant only so far).  One difference on my end; I have already flipped the switch to make Stream live and I no longer have access to Office 365 Video.  My content seems to have migrated fine, but I built a link to an Office 365 video into a SharePoint page and after migration the link takes me to the Stream homepage, but not the specific video.

Wondering if you have any experience with links or embeds and how they work (or don't work) after migration.

Sorry I can't offer any insight into your question about syncing.  Our change volume is very low and I didn't really consider since the migrated content would only be accessed by a very few people during the time when both Office 365 Video and Stream are running in parallel