You’ve already been told repeatedly how to set a manual exposure: Either set metering mode to “manual” or set both min/max to be the same value.
The reason why your scene is blown out is because you’re just copying and pasting the numbers you see in the screenshots people are posting. The desired exposure is unique to each shot/scene. There are no universal settings for “daytime indoor scenes”. A shot looking down a windowless stairwell with fluorescent lighting is not going to have the same desired exposure as corner office with floor to ceiling windows being flooded with sunlight. You can’t just type in a fixed exposure of 1 and expect it to look good because that could be underexposed/overexposed for the amount of light in your view…
Far from being pointless, auto-exposure is practically a necessity for any content where the user has free control of the camera.