There are different ways of handling on-call and the practices at the companies you mention are very different, as is the on-call load. There is a world of dif

There are different ways of handling on-call and the practices at the companies you mention are very different, as is the on-call load. There is a world of difference between someone voluntarily accepting on-call as part of their duties in exchange for higher pay or a 4 day work week, and on-call being forced on everyone.