Here's the tip I learned on this Forum long ago... never ryde with your windshield all the way down. It's the constant road-shock that breaks those weak arms. After lowering your windshield, bump it back up just a tad, to get it off the "bottom-rest."
I've heard that same story, but in my opinion, it's incorrect.
I noticed on my 2010 Spyder that the whole support was loose. Whenever I went over a bump, the windshield would twist. This twist was, in turn, transmitted to the windshield arm. I broke two of them on my 2010 Spyder.
Back in 2010, the mechanism to raise and lower the windshield was sold as a complete unit. It was not designed for repair. The power arm was not available as a separate piece.
At the time, BRP paid for both repairs, once under the standard warranty and the second under BEST.
When I got my 2014 Spyder, BRP changed the conditions of BEST, calling the windshield arm a "body part" and therefore not covered.
I observed that the entire mechanism on the windshield was identical to the 2010
The first thing I did was replace the arm with one from noboot as preventive maintenance, before the OEM arm even had a chance to break.
The mechanism was not designed for repair, replacing the arm was not straighforward, but doable, thanks to noboot and his crew.
I've noticed on my 2020 Spyder, the power arm appears to be the same design as the original, but it's covered in black paint so I can't be certain.
The windshield is significantly better supported and doesn't twist over bumps, so I'm hopeful that it will be more reliable.
BRP now sells the arm as a repair part, so I'm assuming replacing the arm is easier.
Still, if and when the time comes, I will get the replacement part from noboot. I'll just have to paint it black before I install it.
As always, my free advice comes with a double your money back guarantee.