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