All instrument minima are based on the ICAO standard atmosphere, which of course all altimeters are calibrated. At Cat 1 DA/MDA is going to be based on these assumptions, and as everone will be working on these assumptions - they should apply to everyone regardless of aircraft type. I know for a fact that glass cockpit Boeings do not have an automatic correction and I can safely assume the same for Airbus - as one operator I worked for applied the same rules and corrections for both types from the same entry in Ops Man A.
Another operator stipulated a correction should be made at IAS-15, ie 0 degrees C at sea level. easilt attainable in a European winter.
The 4' per thousand per degree is a good rule of thumb, but more accurate charts are available. If your operater operates into cold airfields and doesn't apply corrections, perhaps it's time to ask questions.