[2021] How do I start Odyssey??

Hi all. I am a long time player of Elite Dangerous. I have over 650hrs played. I have ED, ED Horizons and just bought Odyssey tonight via Steam on PC. It downloaded (I believe) about 40 gigs and said it completed successfully. I CANNOT find any way to launch Odyssey. I have tried several things, logging out and in on Steam, in the launcher, turning off virtual cache, etc. I am playing on PC and have never had any issues with ED (Giggity) or Horizons. Can anyone please advise what I need to do? Thanks in advance!!!!!!!