I purchased Affinity Designer to replace Illustrator but I noticed that the overprinting management, in my opinion, is better than AI, because it allows to overprint fillets and fillings in a more refined way also inside the process colors.
(see attached jpg).
Furthermore, the "color selection preview" control tab would be very useful for checking the selection and plates before exporting the pdfs for printing.
Because of these shortcomings I have not yet replaced the use of AI with AD and I hope that these functions can be inserted in the next software updates so as to allow me to permanently switch to Affinity Designer permanently.
Thanks for your attention. Greetings from Lucio