I have received my Ruuvitag Pro batch today. Looks really good!
I noticed that the orientation of the x and y acceleration does not align with the shape of the enclosure. This means that if you were to properly mount the beacon with the screws aligned horizontally, you will not get a 1g on the x- or y-axis.
Yes, the tag is fixed inside the enclosure so axes always point in same direction but they are not aligned with the screws. This is because the breathing sticker needs to align with the humidity sensor for fastest response time.