Wow! So many opinions, now I know why this program is on my shopping list, I've tried to buy it twice and my habit of reading everything to the end before buying doesn't let me get to the end.
I'm a beginner in game development, where time is all we don't have.
We are constantly being asked for quality. With this lack of time, programs like Flowscape are essential, but I think our wonderful developer doesn't have the ability to create exports and keeps hiding behind many excuses.
So let's make his life easier by informing him about the GLTF/GLB import and export format. I think this makes things much easier. Major programs have used this format, for example Castl Game Engine, Gdevelop, Godot, and in my imports and exports to other formats using Blender there are no losses, because I use GLTF files all the time converted to .FBX, Colada and obj in a great and simple engine called coppercube (LOL I'm very bad at programming so using something simple and practical like flowscape would be an excellent purchase.) in relation to the costs of hiring a more experienced developer. Believe in your community and make a patronage or something similar and leave it to us.
Ask for help for each file format and the one that closes the value first, use all the money to implement it, but my opinion is to only include GLTF, because it will be of great use, since the main 3D engines are already adopting it or it is easy to convert to other formats. Just imagine how many areas are no longer supporting it: short film animation, Indian game developers, 3D models, architects and environment design. Just to start lol...