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