I am publishing my application as a single-file self-contained (minus runtime) executable like this:

dotnet publish -c Release -r linux-x64 -p:PublishSingleFile=true --no-self-contained

Note that the "--no-self-contained" only means the runtime is not bundled, but dependencies still are due to the "-p:PublishSingleFile=true" flag.

Ignoring pdb files, after I run the above command I can see the following contents under bin\Release\net5.0\linux-x64\publish:

MyExecutableProject
libmongocrypt.so

The issue is that the mongocrypt dependency is not bundled within the MyExecutableProject executable. If I delete it manually I get the following error when executing MyExecutableProject:

Error:
  An assembly specified in the application dependencies manifest (MyExecutableProject.deps.json) was not found:
    package: 'MongoDB.LibMongocrypt', version: '1.2.0'
    path: 'runtimes/linux/native/libmongocrypt.so'

libmongocrypt.so was not present as a separate file on version 2.11, tested with 2.11.6.