Many tooltips in PQ3 can appear with their right side cut off by the iPhone’s notch.
I use an iPhone 12 Mini. This model has a “notch” at the top of the screen — a space reserved for sensors that causes the display to be less rectangular.
The algorithm for tooltip placement should take the notch into account, perhaps by using the “safe area” API.
Usually I can rotate my phone so the notch is on the left. Sometimes this is awkward (e.g. while charging or when I have “orientation lock” enabled).
(Edited to roughly indicate the area obscured by the notch)