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