Steam

There's a problem with Steam Cloud, when I try to manually delete the saves that don't even appear in the save list in the Early Access for Baldur's Gate 3, they keep on being restored from Steam Cloud even though I deleted them. But, they don't appear in the game's save menu so I can't delete them at all! What do I do to delete those saves for eternity and not just until I launch the game again?

Larian Studios say I am to delete all Early Access saves from the game in order to prevent problems when the game is fully released, but I can't do it because the saves can't be deleted in game - they no longer appear in the game menu.