I used AI professionally since their second version, Illustrator 88. Feel that it peaked with CS6 and got hugely dumbed down after that. That’s the version I still prefer to work with, and own. I had to have a subscription to stay updated so I could track with clients that always had the latest version of everything. But no longer. I’ve seriously thought about Afinity, but haven’t downloaded the trial yet. I’d be amazed if it can’t export to AI though (in terms of what Tayda want)—for a graphics program not to be able to output into an Adobe blessed format would be a huge impediment to it being adopted.
I must be the oddball that really loves AIs bezier (pen) tool. I would go through hoops, importing and exporting cad files when I needed to put beziers into something, since to me it was much easier to get the curve right. There used to be (ancient, pre CS days) an add on tool (from a third party) that gave AI auto dimensioning.