My experience with (Decathlon-issued) HY/RDs was not good. If you adjust them as per the instructions then the (Shimano road) levers hit the bars. If you shorten the cable to get a sensible biting point they no longer return far enough for self-adjusting to happen.
Given the weak point of hydraulic systems is the calliper pistons sticking or leaking, you’re not gaining any reliability going hybrid rather than hydraulic.
My experience with (Decathlon-issued) HY/RDs was not good. If you adjust them as per the instructions then the (Shimano road) levers hit the bars. If you shorten the cable to get a sensible biting point they no longer return far enough for self-adjusting to happen.
Given the weak point of hydraulic systems is the calliper pistons sticking or leaking, you’re not gaining any reliability going hybrid rather than hydraulic.