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