Each has their place. I use Pixelmator, Affinity Designer, Sketch, and occasionally Gimp and Photoshop. Canva is really good at doing things like throwing together a flyer. I used to create social media posts for a pre-school and Canva was super easy to create templates that lay folks could edit. Virtually no learning curve.

Affinity is my vector tool of choice currently but these space seems to be a field with lots of options.