I was under the impression most Airbuses cannot be tuned to different navaids (1 and 2) during approach?
NGs will start to cough out caution messages about rwy/tune, and in some cases draw a yellow line through the course numbers on the PFD. They will also happily capture LOC before the needle has moved at all.
NDBs are set to be removed by year??? VORs may or may not be usable for x-checking.
New equipment, new procedures. RNP/ANP is a good start.
If there is a steamdriven NDB on the chart, I will tune it, but I'm still just as happy to fly the approach without it.