Start here: this should be one technique, not two operations combined
In a classical tummy tuck, the surgeon lifts the whole abdominal skin flap off the muscle, which gives excellent surgical access but divides most of the small blood vessels feeding that skin. Adding aggressive liposuction to a flap treated this way is genuinely risky, which is why older surgical teaching avoided combining the two procedures at all.
Lipoabdominoplasty solves this by changing both the order and the extent of the work. Liposuction is performed first, the flap is then lifted only through a central tunnel rather than across its whole width, and the blood vessels perforating either side are left intact. A surgeon who describes this explicitly is describing a genuine, coordinated technique. One who says they will simply "add some lipo" to a standard tummy tuck may be describing the older, riskier combination instead, and this distinction is worth clarifying directly before you book anything.