Ban on Google Play as a default service in the CIS?

Question

Google Play

Under the ban, it is understood that on smartphones, by default, it should be possible to choose an alternative option than Google play. Is it a monopoly, and if so, what kind?
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Answer 1

I think that this is not possible in principle. It is unlikely that this is a monopoly, since there are alternatives, but why the manufacturer of smart phones and tablets chooses it, I think that there is some kind of agreement.