I believe American units would be deployed differently (mobile infantry, artillery and air support working together).
Key point, the west would never send in tanks and infantry before gaining air superiority at least locally. You can’t have “combined arms” when you are missing one of your arms
Much has been said of the “failed” Ukraine counter offensive, but you can’t clear minefields when your engineering vehicles are being destroyed by aircraft helicopters and artillery.
In desert storm we spent months removing Iraqi threats and then the ground attack was made to look relatively easy.
The much vaunted stand by marines against large Russian force was made possible by massive air response.
Russian air, artillery and ground forces would be decimated by equal response which the Ukrainians yet have the capability to enforce.
Cluster artillery and atacms were provided after the offensive was essentially expended. Cluster munitions from aircraft make artillery versions look small, Russian Air Force having to worry about air launched weapons very well may have a significant effect on their activities as well as survival
Once again it comes down to giving the Ukrainians the weapons to win, not just degrade Russian forces