The issue with the Adobe suites is that their alternatives need to be workflow-identical, it's not just how good or bug compatible the competitor needs to be.
The Affinity suite is excellent, but a heavy Photoshop/Illustrator/InDesign user isn't going to want to move to Affinity due to workflow changes, and possibly plugin ecosystem gaps.
They do not have to be workflow identical. They just need to be equivalent. I can teach someone a different workflow and they will catch on with time. However if the new workflow is worse (slower, worse results, or other such negatives) that will be found out.
Now it will take power users several years to learn all the tricks of the new workflow and that is productivity lost in the short term. This alone may not be worth the cost. If the new workflow is better though it will be worth it.