My Roam 3 only has 60mm travel on the forks , and it's fine for me.
I should qualify "for me" I'm older , weaker , and somewhat disabled , and 157 lbs.
In this context , the basic forks I have work well , they are very comfortable and work "well enough".
If I was 200 lbs , young , and athletically strong , they might be marginal at best.
They do provide a nice ride and lessen wrist and hand pain for my riding style.
I have never heard of Cross Bikes , but on paper it looks very nice as long as the price is relative to the build quality of the bike as a whole.
It would be great if you could ride one for a few miles to get a proper feel for it's capabilities and geometry.
Mick