I'm a Rust fan (mostly for embedded firmware with minimal deps), but even after 10 years of playing with the language it's not clear to me that advanced GUI or gamedev fits well with the borrow checker. It requires a significant paradigm shift in architecture, and I'm not convinced it's worth making that shift, especially if your application can tolerate a garbage collector (which many games and most UI apps can).
Agreed. Multiple languages exist. They can be part of {your, your team's} toolbox for different specific purposes. Some languages are set by other tools or by team members' backgrounds. Popularity also lends itself to greater availability of tools and Q&A forums. In the end, it's a better decision-making process to select what is most likely to be long-term productive for a specific project and team.
