Why? Restrictions on access to user account apps

Open Windows Settings: Press the Windows key + I to open the Settings app.

Navigate to Accounts: Click on "Accounts" in the Settings window.

Select Family & other users: Click on "Family & other users" from the left menu.

Select the user account: Choose the standard user account you want to restrict.

Restrictions: Click on "Set restrictions" under the user account.

Allow or Block Apps: Click on "Find more restrictions" and then toggle off the apps you want to block. Alternatively, you can directly go to the "Apps" section and toggle off the specific apps you don't want the user to access.