The new generic atomic.Pointer[T] has been added[1]. More general improvements for slices and maps are being prototyped in the x/exp repos[2][3] to get it right and not get stuck with a sucky implementation in the stdlib.

[1]: https://pkg.go.dev/sync/atomic@master#Pointer

[2]: https://pkg.go.dev/golang.org/x/exp/maps

[3]: https://pkg.go.dev/golang.org/x/exp/slices