I still like rim brakes, but I don't have any major opposition to disc brakes as long as they're using with thru-axles. (I don't like the pads rubbing after hard braking, which is usually caused by the hubs shifting.)
Finally figured out the process for getting my correct saddle position on a bike!
Start with the saddle level, a bit low, and slammed all the way back on the rails.
Raise the saddle in 3-5mm increments until you no longer lift off the saddle or have pain on or around your kneecaps. You may need to move the saddle forward a 3-5mm every now and then so you aren’t completely sitting on its nose.
Once #2 has been taken care of, pedal with the technique of spinning your knees in small, tight, and fast circles. That pedaling technique will cause you to scoot forward to where your saddle should be.
Move the saddle forward in 3-5mm increments until it feels comfortable with that pedaling technique. Be sure to keep the saddle as level as possible while doing this.