ADFS issues after KB5021235

The federation server proxy could not renew its trust with the Federation Service.

Additional Data
Exception details:
An error occurred when attempting to establish a trust relationship with the federation service. Error: The underlying connection was closed: An unexpected error occurred on a send.

User Action
Ensure that the federation server proxy is trusted by the Federation Service. If the trust does not exist or has been revoked, establish a trust between the proxy and the Federation Service using the Federation Service Proxy Configuration Wizard by logging on to the proxy computer.