I will say, I disagree with this perspective as a developer.
Adding more people doesn’t inherently make the product better. You can have too many cooks in the kitchen and too many people stepping on each other’s toes.
It’s like the saying 9 women can’t make a baby in a month.
I think the other apps are moving at a reasonable pace. Though I do wish they’d put some more people on Linux desktop apps… Maybe even a Linux distribution “Proton OS” could be very interesting.