Would lipo and flexsculpt fix this? (Photo)

Tummy tuck vs. abdominal liposuction depends on several factors including skin quality, scars, diastasis recti and plans for future pregnancy.
In a tummy tuck, the excess skin and tissue is excised, muscle tightened and usually some liposuction for additional contouring.
Liposuction you are just removing the excess fat and with time the skin may contract. Bands or skin folds may persist or recur after liposuction.

It is very likely that liposuction would be sufficient to achieve the desired result, regardless of what type of liposuction is used. The experience of the surgeon is much more important than the technique itself. Good luck.