Okay gang I am confused. BG3 does not put the saves in the "Documents" folder, it defaults to the path below:
C:\\Users\\[username]\\AppData\\Local\\Larian Studios\\Baldur's Gate 3\\PlayerProfiles\\Public\\Savegames\\
Earlier versions of the game up until patch 3 stored saves in Documents, so there may be remnant files from then laying around if they've had the game since early EA. However, they would not do anything one way or another, so removing them would not fix anything. Only if the game also is of an older version.
They're also stored under '$HOME/Documents/Larian Studios/Baldur's Gate 3/PlayerProfiles/Public/Savegames/' on Mac