Hi Adam, thanks for your thoughtful response. Yes, I agree that my first item can be created in an automation, although I have a question about the configuration for Find Records. So, that first.
Trigger seems to work fine:

My Find Records config tough is returning 10 records instead of the one I expected, which was found by the trigger?. I think my condition isn't right.

What's the conditional logic needed to find linked records for just this LMS Content record, found by the trigger?
My Update Record config isn't right, either:

Any guidance you can provide would be really appreciated. (Don't know why I find the automation interface confusing...)
As for the second item, I did a poor job of explaining all that. So, more information:
In our LMS, we create Courses and other training items. A Course can include a video page where we add a video. (These videos are sourced in Wistia, so we specify a Wistia ID to provision the video. This means that updates to a video that then replace the video in Wistia are all updated in the LMS where ever that video is.)
Our content development process regarding new videos is to add the video to the LMS in an LMS Content container whose type is video. In other words, we have content in our LMS that includes both Course as well as Video content. It may be simpler to refer to these as modules - as in we have Course modules and Video modules. So, when we add a video to a course (in a video page) by specifying its Wistia ID, that video now exists in two modules: a Course module and a Video module.
Our asset review process is triggered when a record in the LMS Content table is due for review. Records that are in the Assets table are not part of this review process triggering - we only update records that are in the LMS Content table.
Remember I just explained that we add new videos to an LMS Content module that has the type Video. Because it's in the LMS Content table, it, too, has a Last Review Date field that triggers a review process.
Whew! So, that means that when we are reviewing a Course, and that Course includes a video, we want to also update that video module in the LMS Content table so that that record won't get needlessly reviewed later because we just reviewed that video in the Course. Since the Video module is NOT belng linked to in the Course, (just the video in the Assets table is being linked to) we need a way to update the Video module in the LMS Content table automatically.
Hence, my idea to traverse the LMS Content table and use the Asset Name value to find the associated LMS Content record becae we always use the same name for the record in the Assets table and LMS Content table.
All of this seem really convoluted to me so any ideas would be appreciated.
Thank you!