Hovercraft troop transports are already A Thing, and a fairly significant modern use of the technology. They're mostly appropriate where there's a need to transport significant numbers of troops across flat-but-variable terrain (snow, ice, water, marsh/swamp), and where there's limited potential for enemy fire (artillery, missile, aircraft attacks).
The US have around 100 LCAC and similar vehicles, with a cargo capacity of ~60 tonnes, or 120--180 troops, each.
Hovercraft might prove useful in some cases for traversing minefields, but would be hampered by terrain (hovercraft have poor hill-climbing and slope-traversal characteristics), and might best be utilised after major combat risks are reduced, as part of de-mining operations.
See: <https://en.wikipedia.org/wiki/Landing_Craft_Air_Cushion>
The US have around 100 LCAC and similar vehicles, with a cargo capacity of ~60 tonnes, or 120--180 troops, each.
Hovercraft might prove useful in some cases for traversing minefields, but would be hampered by terrain (hovercraft have poor hill-climbing and slope-traversal characteristics), and might best be utilised after major combat risks are reduced, as part of de-mining operations.