I only recently picked up Affinity Designer (on sale!) and it's been brilliant for a bunch of different things: rough designs, easier icon/svg editing, mockups for different form factors, all sorts of things.
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I'd definitely echo the suggestion for Affinity!
I only recently picked up Affinity Designer (on sale!) and it's been brilliant for a bunch of different things: rough designs, easier icon/svg editing, mockups for different form factors, all sorts of things.