My company ships thousands of boxes per year with UPS and FedEx (and a little DHL). We don’t notice much differences in damaged or lost packages between the two. But we ship to businesses, not homes so that might make a difference.

Personally, I really wouldn’t worry about it until you actually have a problem.

11th gen i7 for software development and I get at least 6-8 hours with battery set to charge to 80%. Using Pop!_OS. I keep my brightness down, but it’s more than bright enough even with sun streaming in the house. I’m definitely considering an upgrade to AMD.

Excessive video calls make it closer to 6 hours, and closer to 8 with software dev.

I have an 11th gen intel, but I had to do some manual legwork to make hibernate mode work. Once I followed the online guides, my 11th gen hibernates just fine. I would guess you need to do the same.