Mods's, feel free to move this post if there's a better spot.

I'm planning a trip to Vegas the week before Thanksgiving and have a few quick questions. Forgive me for the basic nature of the questions, but I haven't been to Vegas since well before COVID times and I suspect things have changed. I am not checking bags, I have TSA PRE and CLEAR. My flight leaving Vegas is Thanksgiving morning at 7 am. All these questions relate to LAS on Thanksgiving morning.

1) is UA still in terminal 1?
2) Is using the terminal 1 A/B entrance the best path?
3) Is there TSA PRE and CLEAR available before the tram to the D gates?
4) For a 7 am flight, how much time should I plan from walking in the terminal to walking off the tram at the D gates?
5) Is the breakfast offering worth a trip to the UC at that hour of the morning?

Thanks for the help and I appreciate the assistance!