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