I will would be awesome to have Affinity photo or entire new app built to stitch 360 photos together. With the rise in virtual tours it seams it would be a smart move.
Personally, I think the $500,000 investment would more than pay for itself in 3 years (rough guess) but Affinity landing on the Linux platform now that top level Professional creative applications such as DaVinci Resolve are available at affordable price points, there is a desperate desire to replace the SVG/raster utilities like Inkscape, and Gimp with professional grade tools worthy of creative professionals in more areas of expertise besides animation and filmmaking. I truly believe that Affinity could be a creative services tipping point for Linux as a viable OS for more creative professionals. The fact that the initial investment is estimated at less than $1M puts Affinity in a unique position to change the landscape. Adobe couldn't afford to follow Affinity, until they get to the point where they cannot afford not to. The reason so many Linux users want it in my opinion is because Affinity could truly be a game changer for the platform. Professional grade 2-D art and design applications are the only gap left for creative professionals to make the switch.