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