Hi, David,
I used shared layer from ArcGIS Pro 2.6. The label look different, but not good enough. Additional space has after every symbol, if sign has more like one symbol, its look not very good, and I see one other problem – Location sign (if multipart).
I don't know, maybe the problem is in my pc's setting, if I asked about this problem alone?
Small things – RWY vacated sign has 4 par of line, not 5 (EASA and ICAO).