Here is the full list of all 47 Persona 5 Strikers achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Earned all Achievements.
Completed the Inmate Registry.
Maxed out all BOND skill levels.
Started a New Game+ on Merciless Difficulty.
Defeated 10 Treasure Demons.
Trained all Phantom Thieves to level 70.
Defeated the Reaper.
Obtained all Master Arts for Sophie.
Obtained all Master Arts for all characters.
Defeated a Dire Shadow.
Defeated all Dire Shadows.
Obtained all Master Arts for Fox.
Completed the Tree of Knowledge.
Completed the Jail of the Abyss.
Sophia found strength of heart.
Completed the Osaka Jail.
Completed 50 requests.
Obtained all Master Arts for Wolf.
Obtained all Master Arts for Mona.
Opened 50 treasure chests.
Spent Persona Points to strengthen a Persona's stats.
Cooked 12 types of food.
Cleared all special requests from the Phantom Thieves.
Completed the Kyoto Jail.
Wolf awakened his Persona.
Completed the Okinawa Jail.
Obtained all Master Arts for Skull.
Obtained all Master Arts for Queen.
Maxed out a BOND skill level.
Completed the Sapporo Jail.
Hit the enemy's weakness 300 times.
Obtained a total 200 items from the Jails.
Obtained all Master Arts for Noir.
Obtained all Master Arts for Panther.
Performed an All-Out Attack 150 times.
Performed 50 ambushes.
Obtained a souvenir for the camper.
Completed the Sendai Jail.
Completed a request.
Used Incense.
Bought something during a limited time sale.
Cooked food for the first time.
Completed the Shibuya Jail.
Obtained all Master Arts for Joker.
Defeated 200 enemies with a phantom dash.
Witnessed the Phantom Thieves' reunion.
Activated Showtime.