I'm coming from an Alienware myself. It's a 2015 ND honestly it has done me no wrong and still runs like a champ but the age is starting to show.
I looked at the recommendations you posted. What are your thoughts on the Sager NP8454? It's got a decent price point for a 4k OLED screen , 9th gen i7 and a rtx2070. It popped up while I was looking on Gentech's website.