Also we are competing now with Blender which is fast moving and free. Blender is now a seriously alternative to 3Ds max and Maya.
A web based editor is at many disadvantages.
Figma isn’t competing with an effective open source tool. Also its resource requirements are much lower so it isn’t limited. Its market is also larger.
Not saying it is impossible to compete but it isn’t simple. Even if you are feature competitive, which is hard, you are likely slower and more resource constrained and also how can you charge much if Blender is free? Paying for an inferior experience? That is a hard sell.