On mobile devices the render distance seems to be much larger than previously on the lowest graphics quality setting. This seems to have caused performance issues and crashes for some (mobile) users.
It seems like the engine tries to select a “suitable” render distance automatically based on some criteria now, causing chunks of parts to blink in and out constantly too.
This is the render distance on the lowest graphics quality now:
Previously it would only render in a very small box around the player, about 1/4th of the width and height of what is currently visible.
Joining on the lowest quality setting can even cause the entire map to be rendered now (loading in some other geometry will cause it to lower it a bit, though).
The game also uses streaming, not sure if that’s related.
At least the iPhone XR and Galaxy S20 seem affected. May be since Wednesday last week.