Resident Evil 2 Remake is available on various platforms other than smartphones. Therefore, you can try this game through emulators. One of them is Termux-Box. This is what YouTuber Mark Korolev used on an Android smartphone with the top Snapdragon 8 Gen 2 chipset.
And if in some scenes of RE2 Remake the level of picture and FPS reaches the Nintendo Switch, then in the rest there is much to be desired.
Thus, in large locations with many sources of light or shadows, graphic artifacts appear. There are also audio artifacts in other levels and even stuttering. At the same time, FPS can easily drop to the level of 13 frames. There are also problems with character textures.
But if you can find the right combination of drivers, you can end up with an interesting project with good touch controls.
I expect that with the arrival of Snapdragon 8 Gen 3 and 16 GB of RAM, the situation will change a lot and even such games will be able to be played on smartphones.
And on iOS you can expect official ports of Resident Evil.