Photovoltaic hipped roof or tent roof

In this case, I am only concerned with the losses (disadvantages) between a hip roof or a tent roof.

What others think doesn't really matter to me, as long as I don't have to clean up the vomit daily. For us, this is now the 2nd house we are building. The 1st was a one-and-a-half-story with a gable roof, with a turret in the front and a bay window in the back. I would never build like that again.
And this time it should hopefully be the last house, and this time I am planning more thoughtfully.

Of course, I would be happy if one roof form stands out because of positive features and takes the difficult decision away from me.

I have 2 more questions...

1. Photovoltaic modules experience power losses over time (20-25 years). Is this related to aging and material fatigue, or do "modules that are not frequently stressed" (due to a less optimal position) last longer?

2. Can the modules also be laid crosswise without any problems? I have already seen some pictures of this on the internet, or are these specially designed for horizontal installation?

Thank you very much in advance.


Best regards
Judyyy