There are numerous recommendations in this forum to always render to "Best" quality in the "Video Rendering Quality" settings of the "Project" tab.
If the Project Settings have a "Full Resolution Rendering quality" setting of "Best", can one assume that setting "Video Rendering Quality" to "Use Project Settings" is tantamount to setting it to "Best"?
I've always done this, and haven't noticed a quality problem, but just wanted to get the expert opinion.
...Jerry