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