Is Developer Mode SSH installation supported

My LG TV shows model number 46001 in ThinQ and software version webOS 25 / 10.1.3 / 33.17.63. Developer Mode and Key Server are on. A computer on the same network can reach the TV’s key server on port 9991, but the TV refuses the SSH connection on port 9922. Is Developer Mode SSH installation supported on this model and software version?