If you are catching up on the Switch version specifically, it includes several major features that were standard by this point in the game's life:
Includes all major modes from the console versions, such as Road to the Show , Diamond Dynasty , Franchise , and the March to October mode. MLB The Show 22 Switch NSP Update 1.0.16 DLC
Support for cross-play, cross-progression, and cross-saves, allowing you to pick up your progress on PlayStation or Xbox. If you are catching up on the Switch
The update addressed performance issues, specifically improving framerates on some consoles when using players with certain hairstyles, such as dreadlocks, which previously caused minor stuttering. such as Road to the Show
Developed as its own build (not a simple port) to maintain a steady 30 FPS in handheld mode.