She-Hulk: Attorney At Law introduces a new character to the Marvel Cinematic Universe with a familiar last name as that of Ghost Rider.
The latest Marvel show might be centered around Jennifer Walters, but each She-Hulk episode also includes a special guest star.
But it does not seem that Donny Blaze is the MCU's Ghost Rider, though. She-Hulk episode 4 makes no direct connection to Donny and the Spirit of Vengeance.