According to Powerpyx's guide, Final Fantasy 7 (VII) Rebirth takes

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According to PowerPyx's guide, Tales of Arise takes 70-100h to Platinum : r/PS5

Final Fantasy 7: Every Trophy and How to Unlock Them, final fantasy 7 remake trophy guide

Review: Final Fantasy 7 Rebirth is an utterly massive RPG pushed to its limit (5/5). : r/PS5

According to Powerpyx's guide, Final Fantasy 7 (VII) Rebirth takes 150-200 hours to Platinum the game (Spoilers) : r/PS5

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Crisis Core: Final Fantasy VII - Reunion Trophy Guide •

According to PowerPyx's trophy guide, Kena Bridge of Spirits takes about 20-25h to Platinum (skill dependent on Master Difficulty) : r/PS5