@rysiek
I agree with your sentiment, however no-one is moving from Photoshop or Affinity Photo to GIMP.

The open source software movement needs to organise themselves better. GIMP has had years – and received grants – and it has not resulted in software that is competitive with Photoshop or Affinity Photo.

One of the reasons Affinity Photo was successful was that it had a lot of similarities to Photoshop's tools and UI – even the shortcut keys. The only hope for FOSS would be either doing the same, or investigate whether it would be feasible to turn Krita into a Photoshop competitor – instead of being predominantly a drawing tool. Assuming the Krita developer would even want this.

As much as I dislike Adobe, for professionals Photoshop only has to save someone 30-60 minutes per month to justify it's cost – which it does. As the situation currently stands, it would be like telling farmers to get rid of their tractors and use horses as they're cheaper.

It's inevitable that Canva will move to a subscription model. Canva will initially make the subscription optional (in the next year or so), then within four-five years they will almost certainly move to subscription only for anyone wanting to use the software fully. So any FOSS competitor would need to be ready for that, however they will still need to be competitive because a lot of non-professional geeks and enthusiasts will either just stick with their current Affinity version indefinitely or move to Photoshop Elements (where no subscription is required).