Frontier Airlines EarlyReturns - Frontier changed schedule

We now have to leave Vegas at 10am instead of 11:10am. Then a longer layover in Denver. Not a huge deal, just means less sleep (hey, it's Vegas.)

But, since they would charge me $75 for a change fee, I'm wondering if I get anything since they changed me in this instance?

Surely you jest.

Would you get anything from UA, AA, US, et.al.?

You are not entitled to anything for the horrible inconvenience of having to leave one hour earlier. However, if it's a big deal you are entitled to a full refund of your fare if it is unacceptable. You can then purchase a new ticket at the applicable fare on another airline, if you choose to do.