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