With the features switched off, I'd expect no impact of charge level over a few days, as it's only powering alarm, entry system and telematics really.
Been a lurker on Tesla groups, when they were on the short list. There is a 'phantom' drain issue there, but I think it's due to all the cameras and sentry mode etc. Not unheard of for considerable amounts eg 20% of power lost in a week. Other functions like a climate over product to cool if car gets to hot etc are on by default.
To allay any potential concerns - the iX lost about 2% over the week we left it parked at Southampton docks last summer - and iirc yours has a larger battery than mine. I assume waking it up with the app might make it lose more, but I can't see why you'd need to.
So I was out Sunday-Thursday, came back and the i4 was on exactly the same percentage.



