I think GC is not harmful than helpful in drivers and things like an OS. gVisor in particular jumps through hoops for performance and still has poor performance

I think GC is not harmful than helpful in drivers and things like an OS. gVisor in particular jumps through hoops for performance and still has poor performance. It could be more successful in C++ or Rust probably. I like Go a lot, but if you needed the performance or manual control it is not the tool for the job. On the other hand most problems don't fit that description and Go is one of the best choices for them.