Thanks again v_kyr,
This leaves the question, does the Affinity App permit the specification of an ICC in the Print module? If so then all may be well.
The downloaded manual from
https://www.dropbox.com/s/d3uxmmypdx9ruzw/Affinity%20Photo%20Manual.pdf?dl=0
page 451 suggests that the Print module is very sparse in features, just allowing scaling of the image (that is important to me also).
Other forum comments also suggests that the Print module is sparse.
However the video
https://vimeo.com/203279705
Shows that with windows, the ICC profile can be set in the Affinity App. (although it does show the 'manual' tab in the printer driver that does not work on my PC).
So my way forward is to find time to download and evaluate a free trial of Affinity and see what works for me, then it may be goodbye to LR & PS both of which I find are becoming overdeveloped with as many bugs as fixes with each download.
Thanks again