I treat the transition altitude and and thrust reduction altitude just like i used to on electro mechanical aircraft, i memorize it.
the children of magenta approach is to wait for the PFD to flash, for me thats to late.
they always end up reducing thrust at 1500’ instead instead of 1000’ takes them 500’ to reduce thrust.
On departure there should be awareness of TA which typically reflects the highest grid mora within that state.