Welcome to the MongoDB Community Forums! The crypt_shared andmongocryptd only support the same hardware as our Server releases. The crypt_shared library is mostly portable between different Linux distros. So depending on the version of Debian being targeted, any crypt_shared library built for a Linux distro with an older or equal glibc version should work fine. E.g For MongoDB 8.0, the oldest supported Linux on arm64 is RHEL8 and its crypt_shared package should also work on Debian.
Please note that the crypt_shared library is available for Atlas and Enterprise Advanced only, not for Community.
Hope that helps.
Thanks,
Rishit.