Just received mine and tested it this morning. Seems to working well so far on my morning commute and my phone didn't seem to be too hot. I feel I have a thicker case as well and wireless charging still works great!Nope. My iPhone 15 Pro Max and my wife's iPhone 15 Pro - both with Apple OEM silicone cases - work just fine. Heck, I just got this Amazon thing because I'm so tired of how dirty/dusty the pad gets, and both phones still charge without issue.
That thing is AWESOME. Highly recommended.
If you have the sun streaming through the glass at the phones on the charging pad, it's still possible to get an overheating message, though.