Hello!
I found on the SaalDigital website the advice not to use their ICC-profiles for softproofing, because simulation of the colour of the paper isn't possible.
Here is the link to the according site: https://www.saal-digital.de/support/article/softproof-in-affinity-photo/#sb (Maybee you have to sroll to the top of the site.)
Will this be supported in future versions?
Best regards,
Paul