Quick poll. Disregarding all other specs on a phone (brightness etc aswell), let's say you have 2 identical phones and the only part you can't decide between is the type of screen. Cost is the same.
Fhd LED/AMOLED panel 1080 x 2400 @ 60hz
Fhd IPS LCD capacitive 1080 x 2400 @ 90hz
Basically asking which would be your deciding point. Would you pick 90hz lcd over an led panel?
For an iPhone? No.
iPhone X/XS/11's OLED is far superior to the XR's LCD and wouldn't be able to go back.
This may differ for Android devices due to OS smoothness and OLED quality varying.