Steps to reproduce:
# Create a project
# Go to the menu "Unity" -> "Shortcuts"
# Verify, that the "Shortcuts" window opens
# In the profile drop-down menu select "Create New Profile"
# Repeat the same action several times

Expected result: During the second profile creation proposed default name should be "New profile (1)"

Actual Result: The user gets the same default name "New profile" with the validation below, that such a profile already exists. Added screenshot in the "Attachments" section. 

Reproducible with: 2023.2.0a15, 2023.1.0b15, 2023.1.0b16, 2022.2.19f1, 2021.3.25f1.

Not reproducible with: 2023.1.0b14.

Additional info: [Label section|https://unityeditordesignsystem.unity.com/components/label#Content-Best-Practices:~:text=Unity%20Style%20Guide%20%2D%3E-,Use%20of%20brackets%20(%23),-When%20displaying%20labels] in Editor Fundamentals Internal