Effective January 1, 2024, we will introduce a new Unity Runtime Fee that’s based on game installs. We will also add cloud-based asset storage, Unity DevOps tools, and AI at runtime at no extra cost to Unity subscription plans this November.
https://blog.unity.com/news/plan-pricing-and-packaging-updates
Godot also has first-class Linux support, and built a solid foundation that allows for Wayland support in the future. Developing Unity games on Linux has been broken for a while now.