He went through the Apple Icon -> "About This Mac" -> "More Info" -> Coverage Expired Details Button -> Clicked the Get Support button and ended up in an infinite loop of questions on the Apple website if I recall correctly.
Some people do have a lot of issues with the adhesive and skin reactions. I am lucky and don't have that.
I use an Anubis, a modified Dexcom G6, (https://www.loopandlearn.org/anubis/), which allows up to 60 days of wear. Although realistically I've never gone over 25 days. This is with adding over patches as the adhesive starts to fail though. The one I'm wearing right now is on day 18 and still doing great.
After day 10-12 I also start to do daily checks with a blood glucose meter to verify that the readings from the CGM are still correct.
Living in northern Sweden I see the northern lights multiple times a year. I have never seen them pale or otherwise not colorful. Green and reds always. That is to my naked eye. Photographs do look more saturated, but the difference isn't as large as this comment thread make it out to be.
Not great support on Apples side there.