You should not view the sun as you pointed out.
However the vanadium oxide sensor used does have the ability to recover from minor sunburn in most thermal cameras.
With that being said, I like you, worry about damaging my investment.
For the Mavic 2 Enterprise Advanced when you view the sun inadvertently for too long, the thermal shutter burns out leaving it inoperational.
Any sunburn does eventually fade away, but without the shutter, you cannot FFC/NUC.
I use a different drone for any images where the sun will be in it, and take careful note to angle my camera down from the sun at all times for daylight operations.