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