My MacBook Pro return key functionality has suddenly changed

Surgawa wrote:

Hello, my return key's functionality has suddenly changed, and I'm not sure what caused it. Currently, when I press the return key, it acts like the shift+return shortcut instead of functioning as the regular enter key. Does anyone have any suggestions on how to fix this issue?

[Re-Titled by Moderator]

What does Shift Return do for you...?

I see no Shift Return..ref: Mac keyboard shortcuts - Apple Support

You can try a safeboot to sort anomalies:  How to use safe mode on your Mac - Apple Support

verify Full Keyboard Access did not get turned on

ref:Navigate your Mac using Full Keyboard Access - Apple Support

>System Settings>Accessibility >Keyboard>Full Keyboard Access>OFF

Navigate your Mac using Full Keyboard Access - Apple Support

If you set up shortcuts— try removing them or restore defaults.

Mac keyboard shortcuts - Apple Support

Change a conflicting keyboard shortcut on Mac - Apple Support

Intro to Shortcuts on Mac

Shortcuts User Guide

Surgawa wrote:

when I press the return key, it acts like the shift+return shortcut instead of functioning as the regular enter key.

What app exactly? Does it happen when you write here in Safari?

What exactly is happening and what do you think should happen? "Shift return" doesn't mean anything different than return on a Mac normally.