Graphic designer here: I got hired at an agency recently, signed up using my company's account so I could save $50/m doing away with my subscription and ran into this issue. Very fun. Anyways, the future isn't going to be kind to Adobe. Figma has replaced a lot of my Adobe workflow, it's just infinitely a more pleasant experience. Canva has replaced things that require 3 different Adobe products to do. For serious vi…
Affinity products are really great. Not yet on par with Adobe's but almost there for most tasks, and more than enough for casual users.
Some things are missing -- a JavaScript or AppleScript interface for example. And small stuff like you can't reseed the perlin noise generator in Photo.
But some things are surprisingly better.
Affinity Photo has live filter layers that work much better than smart objects, it has a frequency separation tool that is genuinely easier to use, it has proper blend curves that are enormously powerful (sharpening just the highlights? noise reduction just in the shadows?), and you can do things like use Lab curves on an RGB image.
Affinity Designer I know less well, but the symbol and artboard support is astounding (bordering on what Sketch can do), and small things like the rounded corners support is amazing. Its one omission -- it doesn't have an autotrace.
I am sure there are several things InDesign does that Publisher can't, but Publisher's integration with Photo and Designer is absolutely remarkable.
This mix of missing features and improvements is exactly what you should hope for in a competing app; they don't have quite the same objectives in mind and they have started afresh rather than chasing a feature set.