Here is the full list of all 51 F1 2021 trophies - there are 38 bronze, 10 silver, 2 gold and 1 platinum.
Finish 50 races in online multiplayer (excluding career)
Complete 10 Clean Online races (excluding career)
Complete a season in Two Player Career
Complete your first race in Two Player Career
Complete a 2nd season of My Team/Driver Career/Two Player Career
Achieve 50 pole positions
Reach a Team Acclaim level of 20 in My Team mode
Win a 50% distance (or longer) F1 race at Monaco
Hire an acclaim level 15 or higher Driver in My Team
Adapt an upgrade whilst within its Regulation Change warning period
Finish 10 races in online multiplayer (excluding career)
Win a 25% race in wet conditions
Earn 15 Trophies for the Trophy Cabinet
Complete a League event
Complete 10 One-Shot Qualifying sessions
Spectate an online race
Set the fastest lap in all 3 Practice sessions, get pole and win the GP
During an interview, your actions lowered the morale of a Department in your Team
Save a captured highlight in Theatre Mode
Win 5 online races (excluding career)
Edit your customisation and complete a online race using it
Take a photo in Photo Mode on the USA, Brazil, Mexico & Canada circuits
Complete a medium length F2 GP event (Feature & Sprint)
Win a race using manual gearbox.
Show off your custom emote on the podium
Win the F1 Constructors Championship
Achieve 1st place for every race in a 10 race season
Win the F1 Drivers' Championship
Successfully develop a component using Rush option
Win a Silverstone GP as Williams, McLaren, Aston Martin, Red Bull or Alpine
Win a GP event at Suzuka with a Honda Power Unit
Win at both Spa-Francorchamps and Sochi Autodrom in Grand Prix.
Develop a component in every R&D Department
Complete your first race weekend with your own team
Develop first R&D upgrade in any department
Complete a Practice Programme session using Quick Practice
Complete your first session in your My Team car.
Have more than one Department in a positive morale status
Complete Story Mode
Reach the end of Chapter 10
Win a single Grand Prix event at Monza as Ferrari or AlphaTauri
Achieve Pole Position after any qualifying session
Reach the end of Chapter 6
Win your first online race (excluding career)
Complete the Prologue
Get on the podium
Get 1st on the podium
Use Flashback to rewind time
You did it!
Complete 50 hours of total track time
Finish 100 races in online multiplayer (excluding career)