PSA: Apparently you can disable Play services within the Knox container on Samsung devices that have it.

@Jilano Well source is that I have one and I could :)

Its in the normal app manager but in the container. On the base ROM Play services is of course not possible to disable but inside the container it just... is. Probably for high security customers who actually use Knox for important stuffs. I mean Google can still probably track the base ROM as much as they want so not much gained but its kinda cool to have a Google free zone at least.