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