I must’ve gotten lost in the mail, I didn’t receive anything.
Not in this case, no. Apparently Powerdevil needs to make some upstream changes to adapt to ddcutil >=1.0.0. I know other projects like Clight did.
I wouldn’t, no. The official way is to file a bug report when a package is broken or is lacking a feature. Either way, DO NOT mention you’re using Manjaro or you will be completely ignored.
That’s worth a shot.