I usually hear the letter "р" pronounced as a post-alveolar trill, and in countless introductions to Russian phonetics it is taught as such, but some people appear to pronounce the letter further back, as an uvular fricative, such as in this example:
The speaker is Дми́трий Ви́кторович Лива́нов, a native Russian so it can't be an foreign accent. And also, I have already heard the same pronunciation in other places.
I might be hearing the pronunciation incorrectly, but if not:
Where do the differences in pronunciation of the letter "р" come from?