I am sorry that I use this post for such purposes but pay attention for it pls.
I discover for my self this cool tool - ProtoPie. So cool and easy for make great prototype. I asked ProtoPie support about importing from Affinity Designer. They said you can make a request and we will consider this opportunity.
Here my request and I would like to ask the affinity community to support my request. This is a great chance to find the possibility to animate our Ui.
https://protopie.canny.io/feature-requests/p/import-affinity-designer
Thanks for attention & wish a nice day.