default or selected kernelversion does not have config value CONFIG_NFSD_TCP.
Result is shown for kernelversion 5.19-rc1
Provide NFS server over TCP support
configname: CONFIG_NFSD_TCP
Linux Kernel Configuration
└─>File systems
└─>Network File Systems
└─>Provide NFS server over TCP support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)
If you want your NFS server to support TCP connections, say Y here.
TCP connections usually perform better than the default UDP when
the network is lossy or congested. If unsure, say Y.
TCP connections usually perform better than the default UDP when
the network is lossy or congested. If unsure, say Y.