The VCF Sh'vhal was a Vulcan cruiser commanded by Captain Sokel, whose junior officer T'Lyn detected the collusion between a Klingon captain and the Pakleds in 2381.
The Sh'vhal appears in the Lower Decks episode wej Duj, which follows the lower ranks of three ships, Starfleet, Klingon and Vulcan. T'Lyn, a young officer, has neglected her set duties to improve the ship's sensors, and her modifications pick up an unexplained burst of metreon particles.
Sokel thinks her instinctive and undisciplined, but agrees to investigate. The trail brings the Sh'vhal to the place where the Klingon Bird-of-Prey Che'Ta' and a Pakled ship are attacking the USS Cerritos, and the Vulcans join the fight, protected by a shield enhancement T'Lyn has also devised.
Afterwards the captain tells her that her conduct is unsuited to a Vulcan crew and has her transferred to Starfleet, which leads to her posting to the Cerritos.