I picked my phone up from Walgreens. It wasn't a bad experience, just a little weird. I was told that Fedex didn't deliver until 6:00pm, but saw the box with my name on it in the Fedex cabinet. In their defense, I did show up as soon as I saw the delivery was pending, and it hadn't showed up in their system yet. I'm not sure I will use this way again or not.
The phone is a beast, and transferring everything from my S10+ was fast and easy.
Good luck to all those still waiting, I've been there. It's not unique to Samsung, other companies do the same thing. I've preordered so many phones over the years so I'm familiar with it, and it doesn't bother me anymore. It just the way it is, and I'm not sure why.
Apple, from my experience; is the only company who can pull off a mass pre order and shipment process with little issues. I'm sure they've had issues also, but I don't ever remember pre ordering a phone from them, and someone who orders later got their's first.
As long as you're up early enough to order, you got the phone on launch day, sometimes before. People who order later are usually waiting awhile, and it truly is first come, first serve.
I held back on saying anything because I figured I would be unlucky this time and wasn't getting my phone until September, didn't want to bring anyone down LOL. keep in mind it's not the end of the world, and you will get your phone sooner or later. Hopefully by the time I'm typing this that most/all of you have your phones.