Reset a Nintendo Switch 2 without deleting save data

• In order to access the Restore factory settings without deleting save data option. We need to be in Recovery mode. 
• To access Recovery mode, you first need to power down your Nintendo Switch.

Note: If your Nintendo Switch has frozen or is unresponsive, you can power down the console by pressing and holding down the power button for 20 seconds or until the screen powers down.

• Now with the Switch powered down, power it back up but then immediately press and hold down both volume buttons.
• Keep the volume buttons held down until the Recovery Mode screen is displayed.
• On the recovery mode screen choose the option Restore factory settings without deleting save data.
• Follow the onscreen instructions to factory reset your console, but not delete your game saves and user settings.

• Nintendo article – Virtual game card guide.
• mydoodads article – What to do if your Nintendo Switch 2 crashes. 
• mydoodads article – The three ways to factory reset a Nintendo Switch 2.

• Nintendo article – Restoring factory settings.
• Nintendo article – How to Restore a Nintendo Switch 2 Console to Factory Settings Without Deleting Save Data.