I wouldn't worry about following up with HR - since you applied as part of 2019 recruiting, you will probably hear back at the same time as all other candidates (whether you get invited to interview or not). Therefore, following up with HR is unlikely to do anything in accelerating the process (and might just frustrate the recruiting manager as he/she will definitely get hundreds of emails from candidates.
Plus, two weeks is a perfectly reasonable amount of time to hear back - consider they have to review + score hundreds (if not thousands) of CVs, arrange interview times, etc.
Don't worry, use the extra time to prep, and as Guennal said, keep applying to other firms!
Best of luck,