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