The tested .net 10 runtime version is 10.0.100-preview.6 at the time of writing the document, which can be obtain here.
!!! DO NOT USE RUNTIME VERSION BELOW 9.0.100-rc.1 OR YOU MAY PROBABLY RUN INTO CRASH. !!!
Article: https://minidump.net/dumping-the-managed-heap-in-csharp/
Sample code to show how to walk the managed heap in C#