this affinity apps is nice looking but the usage and the tools and the intuitive ways are missing ... even inkscape has better tools for vector graphics design.
I was just doing a logo design project to test the app ... well i must say i got pretty annoyed of the lack of options and tools to work with.
i would strongly recommend to look around in the open source app how they do things on functionality / Krita, Gimp, Inkscape, Blender / there are plenty of amazing ways how to work with graphics - and make ones life a bit simpler after all its a computer and a software - make the most of it do not settle on half solutions. I understand for 50 Bucks i cant expect too much ... but maybe this is also the wrong model - how you wanna keep up the dev costs from this?!
I would be happy to see some openness to at least integrate some great plugins like Astute.