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