Agreed. Of course, with all my family in a small city in NW Indiana, I grew up flying through O'Hare, so most airports don't phase me! But I've heard so much ragging on LAX and it's really not that bad. In fact, I'd say it's better than a lot of large airports (Sea-Tac, I'm looking at you)
Every time. Sometimes I even go up and ask if they're going to need volunteers! Of course, our last Disney trip I didn't want to have to wait for baggage so when they asked for volunteers I kept my mouth shut and prayed enough other people would volunteer. Thankfully it worked.
Minnie doesn't walk around like some of the other characters do, but there will be a designated place she will stand you can line up to meet her and take a photo. When we were there in July 2022 the location was on main street down near the railroad station. They might have been in front of Great Moments with Mr Lincoln, actually.
Another option for seeing Minnie is to get reservations for one of the character breakfasts, as
@Obi-J Kenobi mentioned. The Plaza Inn breakfast is titled "Minnie & Friends - Breakfast in the Park." We did this one in Nov 2018 and at that time you met Minnie when you checked in. She was stationary, just at the check in location, but we got to interact with her and take a few photos. Once seated, many characters came around to the table - Fairy God Mother, Captain Hook, Eeyore, Tigger, Rafiki, Max, Chip and Dale...I think there may have even been 1 or 2 more that I'm forgetting! I've heard that FGM has been replaced by Daisy right now as they're not having face characters at breakfast currently.
Another option is the character breakfast at Story Teller's Cafe, which is at the Grand Californian. There is no specific meet and greet at check in like at Plaza Inn, but typically Minnie, Mickey, Chip & Dale come around to the tables throughout the meal. We preferred the food at Story Teller's, and the fact that it isn't in a park means you don't need a park reservation/ticket for that day, so you could do it on your departure day and not use up any park time.
With Plaza Inn, we did ours on a day that Early Magic Hour existed but we didn't have tickets for so that we weren't using valuable park time. We did our breakfast at 7, and the park opened to everyone at 8. We were able to get in and have breakfast, meet all the characters, and still be on a ride by 8:30. If I were doing it now, I would set it for the latest breakfast option they have and make it a late-morning/midday break.