thread_local absl::BitGen SharedBitGen::bit_gen_ hangs application during startup

What version of gRPC and what language are you using?

grpc 1.78.1 (also 1.76.0 and abseil 2025 and 2026).

What operating system (Linux, Windows,...) and version?

Win

What runtime / compiler are you using (e.g. python version or version of gcc)

VS2026 (18.3.1), static build.

What did you do?

My app is starting very frequently during short period of time. And some instances hang before main().

What did you expect to see?

no hangs

What did you see instead?

Starting program has two threads.

Place of the hang.

https://github.com/grpc/grpc/blob/master/src/core/util/shared_bit_gen.cc

Anything else we should know about your project / environment?