Bearings and shocks etc are wear items..change when warranted. An alignment is done as needed..after new tires or front end work for instance. When you get an alignment... ask them to lube steering linkages...often forgotten.
As for service... google BMW service one and two...you will get a return such as this:
https://autoscope.co/cars/bmw-repair...ion-2-service/
In short...your manual is a a good guide... the X6m is a vehicle that is easy to do most maintenance items on...