Final Fantasy XV Save Game Location
Windows
Final Fantasy XV save games can be found on Windows here:
C:\Users\[user_name]\Documents\My Games\FINAL FANTASY XV\Steam\[user_id]\savestorage\
Other Locations:
Final Fantasy XV save games may also be found on Windows here:Microsoft Store:
C:\Users\[user_name]\AppData\Local\Packages\39EA002F.FINALFANTASYXVforPC_n746a19ndrrjg\SystemAppData\wgs
Origin:
C:\Users\[user_name]\Documents\My Games\FINAL FANTASY XV\Origin\savestorage\
Linux
Final Fantasy XV save games can be found on Linux (Proton) here:
~/.steam/steam/userdata/[user_id]/637650