From what I've heard, the series is stylistically similar to F3 and F4, so you'll probably find some familiar elements. I recommend the first season of the series if you have the inclination or free time. It works well as a "better" production (i.e., not with a silly script, as is the case with so many series) for dinner or relaxation.
RE: My impressions of Fallout Season 2 | Moje wrażenia z 2 sezonu Fallout