They do, kinda. But they also choose to not let their software interact with it, then.
Which puts us in this weird position countries like the US AFAIK have no laws for, the EU is just starting to employ gatekeeping-laws for technology forms in a big way. Play Services is Google’s piece of software, legally they have every right to refuse to let it run on hardware whatever. It’s their software after all. But, they have such a market-controlling situation that it’d be unfair of them to specifically exclude company X, Y or Z.