My Windows gaming graphics performance dropped by 40% after some update. I already was using Linux for everything else except gaming for many years. So I tried out Steam on Linux and I was quite amazed how many games run on Linux via Proton. Just check out protondb.com for compatibility reports.
I did a bit of scripting trying to automate the TDD cycle given a task description. The problem is, that the LLM tends to jump forward and submit a full implementation instead of a minimal change. I guess the problem is, that LLMs are trained on complete solutions instead of minimal steps.
In the past I have done some rigid body physics in GNU Guile (see https://www.youtube.com/watch?v=zBq3kW2jVxs for example). Of course if you need to simulate many objects, you will hit performance problems sooner if you don't use C/C++/Rust. Also the developer of Jolt has solved quite difficult problems, so I was quite happy to use it instead of rolling my own.
I use a few macros for creating contexts (i.e. with-texture, with-stencil, with-scissors, with-tar). Also I have macros for rendering (onscreen-render, offscreen-render). However I try not to overuse macros.