Publisher Square Enix has started pre-installation for the western version of NieR Re [in] carnation. You understood correctly: in Russia, this cannot be done on both platforms (iOS and Android). At the same time, players from Belarus and Ukraine report that everything works for them. It also states that a VPN will be required for normal launch since the western version is attached to the corresponding regions.
For entering the first ten days, players will receive 1,000 gems. Plus, for the start, a special gacha will be introduced, where you can be guaranteed to knock out a 3-star character and two books (accessories). More details can be found in this group.
NieR Re [in] carnation will be released on iOS and Android on the evening of July 28th or in the first half of July 29th, because Moscow has a 10-hour difference from PDT. It will be a shareware project with all that it implies. There is no information about the Russian version yet, we asked the developers a question and will update the news as soon as we learn something new. We are looking forward to a collaboration with NieR: Automata.