When 5G came into my area, the difference in speed from 4G-LTE was EXTREMELY noticeable. There's a lot of factors that go into it, so everyone's experience is going to vary a bit here and there.

Like you said, LTE serves you well, so you don't need it/won't notice an increase in speed. I am on the go constantly and have a Hotspot capable of 5G where speeds are detrimental. It has been amazing for me!