Here is the full list of all 50 F1 2019 achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Finish ahead of Devon and Lukas by the end of an F1 Season
Win the F1 Constuctors' Championship
Win the F1 Drivers' Championship
Complete a Featured Event
Win a league medal
Get promoted to first driver
Complete 10 races online
Complete the "2018 FORMULA 2 WORLD CHAMPIONSHIP" championship event
Register a time trial entry on every track
Win a race whilst using manual transmission
Complete all events in a Weekly Grand Prix
Set the fastest time in all 3 practice sessions, take pole position and win the Grand Prix
Accept a contract with Red Bull, Ferrari or Mercedes
Complete an F1 Time Trial in wet conditions.
Complete a race using the Ferrari F2004 at Monza
Win a 25% distance (or longer) race against Ultimate AI opponents
Reach Level 25 XP
Set a favourite trophy
Make an adjustment within photo mode
Read information on a car in the showroom
Join a league
Complete the first weekend of an F1 season.
Finish ahead of Lukas or Devon in an F1 race
Get on the F1 podium for the first time
Tell Jeff to be quiet
Reach Level 10 XP
Complete an F1 practice programme in Career Mode
Accept a contract with Williams, Racing Point, Renault, Toro Rosso or Haas
Complete the F2 feeder series and start to pursue a move to F1
Complete your first race with an F2 car in career mode
Obtain a livery for your multiplayer car
Achieve a safety rating of A in multiplayer mode
Reach Level 5 XP
Get pole position
Play a captured highlight
Complete a clean race
Activate a Flashback during a race
Activate DRS perfectly on all zones of any track
Spectate an online race
Choose a player badge
Change your driver's appearance
Complete an F1 race with all driving assists turned off
Complete a Weekly Grand Prix
Reach Level 50 XP
Achieve a Gold skill rating
Win a 25% distance (or longer) F1 race at Monaco (any difficulty)
Accept a contract with McLaren or Alfa Romeo
Reach maximum sportsman rating
Reach maximum showman rating
Apply all vehicle upgrades from one department