Latest model Escalade - Rough Ride?

Check that the tires aren’t way overinflated. Wouldn’t be the first time I’ve seen that done, but probably wouldn’t impact the ride as much as you’re experiencing

 

This is a long shot, but if memory serves me the Escalade comes standard with MR shock absorbers. They used to have to install a spacer for shipping purposes in those shocks. If the dealer doesn't remove them, the result is a harsh ride.
You might take it to the Cadillac dealer near you and ask if that's the case with your vehicle.

 

The front struts also seem to wear extremely fast. First one I noticed was a friends, she asked me to look at it. Dealer had told her she needed struts at 65k miles. It drove horribly, and one strut was leaking, the other felt locked up.
Since then I’ve seen several more that were super stiff between 50-80k. Less mileage than yours but I don’t see many under warranty. Have it checked out for sure.

 

Good luck, I hope they take care of it. The front struts are not cheap by any means.

 

My wife bought two CPO Cadillacs (back to back) and both came with better warranties than the new cars. Coverage was bumper to bumper until the initially warranty ended and then the CPO warranty kicks in. Amazingly enough, at least three battery replacements were covered at no cost.

Another thing to consider, if the tires are replaced with those rated for Light Truck (e.g. Tahoe or Silverado) then you're lose part of that "Cadillac Ride". So replace with OE spec only.

 

We chose the Michelin all-season tires as well. In the past, a tire shop know-it-all sold truck tires to my wife for her Escalade, which, made it ride like a truck. She went with Cadillac-spec Michelins on the next set and everything was smooth again.

This was a few years ago and they change tires specs all the time so it might not be a concern for newer Michelins. For example:

The Defender LTX M/S is Michelin's Highway All-Season tire developed to combine long tread life with all-season capabilities for vans, pickups and sport utility vehicles, as well as for commercial vans, shuttles and chassis cab vehicles using heavy-duty, light-truck sizes. The Defender LTX M/S is designed to combine a smooth, quiet ride with year-round traction in dry, wet and wintry conditions, even in light snow.

Compared to the popular Michelin LTX M/S2 it replaces, the new Defender LTX M/S tires share the same highly functional tread pattern, and offer improvements in wear life/longevity to better meet the high-torque demands of modern trucks. Defender LTX M/S is designed to be stronger, longer.
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Or this:

The LTX M/S2 is Michelin's Highway All-Season tire developed to combine long tread life with all-season capabilities for vans, pickups and sport utility vehicles, as well as for commercial vans, shuttles and chassis cab vehicles using light truck tire sizes. The LTX M/S2 is designed to combine a smooth, quiet ride with year-round traction in dry, wet and wintry conditions, including in light snow. Compared to the original LTX M/S, the LTX M/S2 is an evolution in looks . . . and a leap forward in performance.

The LTX M/S2 molds a long wearing, silica-enhanced, all-season compound into a tread profile featuring Michelin's MaxTouch Construction to produce a contact patch that promotes reliable traction and long wear by evenly distributing acceleration, braking and cornering forces. A symmetric tread design of stable independent tread blocks featuring high-density 3-D Active Sipes delivers all-season traction on dry roads and in inclement weather. Four wide circumferential channels, multiple lateral grooves and open shoulder slots promote lateral water evacuation to enhance wet traction and stopping performance.
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For her current SRX (Performance model) we went with the Goodyear Eagle Sport All Season. Phenomenal tires but probably apples to oranges (SRX - Escalade).

 

They did that to my SO also.... good reason to go to Discount Tire.

I went back there a week later, said I hated the tires. All my $$$ back, including labor.
Had them swap out to Michelin. Perfect.

 

Glad you figured it out. We had a 2017 and it rode like a cream puff for us.