I’m not in the US, but 5g is a noticeable and major upgrade to LTE for me.
I had decent LTE speeds and never had a complaint, but things load instantly for me with 5g instead of the few second delay to load with LTE.
But the biggest difference for me is that I can work off of my 5g hotspot but I couldn’t off of LTE. If WiFi dropped, I’d need to use my wife’s 5g phone before. But if she was not home, I’d just have to cancel meetings.