My biggest gripe is also the power level. Witcher 3 already sets her potential way above Geralt which means for Witcher 4 they most likely will nerf her powers to not make her a, living god. Personally I would've preferred if they hadn't used Ciri in the first place because it's bound to create retcons.

Or if they wanted to make a story about Ciri they should've focused on who she is (someone with elder blood) not on who she isn't (an actual Witcher). She doesn't need Witcher powers, her innate powers are already way stronger than what a Witcher gets.