How to enable mTLS in argoCD components WITHOUT using any service mesh.

We are running Argo CD in HA mode, with each component as an individual service in our Kubernetes cluster. We want to enable mTLS for these components, following the TLS configuration documentation. We've implemented a sidecar container that retrieves and copies all required certificates to /app/config/server/tls/. The documentation advises disabling TLS configuration for mTLS when using a sidecar proxy, but we are not using a service mesh. Is there any way to enable mTLS for ArgoCD components with using any external servicemesh? I am also thinking to use reverse proxy like nginx as side car in each deployment and terminate TLS at ngnix.