The iPhone will connect wirelessly without using the charging pad, as far as I know BMW is the only manufacturer that has wireless Apple CarPlay too. I haven’t had any heat issues with my iPhone 11 Pro Max but the longest I’ve had it on the charger is ~90 minutes, I do use wireless charging 95% of the time at home though without issue.
I only use wired charging for the occasional Apple Watch charge, other wise the wire mess is distracting.
Hope this helps — Good Luck!
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