I can on 2 accounts using Redmi Note 5, run 2 accounts in the background for easy switch between. However, both account can't run together when u split screen to show it together. It might be RAM not enough. In fact my old Lenovo P2, when enable dual app, also can run 2 accounts in the background.

But based on Gamepress, it seem like Espeon and Flareon with Last Resort is powerful attacker, in weather boost condition.

https://pokemongo.gamepress.gg/community-da...gust-2018-guide

Yes, it will not flee away. I always pinap it when catching the research encounter pokemon.

Pocophone f1, split screen work fine, can use to enter raid battle with 2 accounts as well.
The only issue is not able to rejoin the battle in raid, because the screen too small when split screen, no able to press the rejoin button.

I would say I still can play pokemon go inside some shopping centre. But there sure do not have GPS signal in the tall building.

Ya, read the same message from Reddit, a bit worry as well. So I am not always go with split screen, just use it during raid.