Flatwork edges and standing walls are different questions
A form on a driveway or patio only has to hold a straight edge in place while the concrete stiffens. It is not fighting gravity the way a form on a wall is, so it comes off relatively soon, usually within a day or two, once the edge is firm enough to be exposed without slumping or crumbling.
A wall form is doing real work the whole time it is up. Wet concrete pushes outward like a liquid, harder at the bottom of a tall pour than at the top, and the formwork and its bracing are what keep that push from bulging or blowing the wall out of shape. That form has to stay on until the wall can carry its own weight, and that takes longer than an edge form on flat ground.
Why wall stripping is a judgment call, not a countdown
Forms come off a foundation or basement wall once the wall has cured enough to hold its own shape. That depends on the mix, the wall thickness, and the weather it was poured in, not a fixed number of hours off a chart. Pulling forms early to hit a schedule is how a wall ends up scarred or out of plumb, so we read the concrete and the conditions rather than the calendar, the same way we read the footer it sits on before we ever set the first panel.
The timing that matters for your job goes on your written estimate, because it depends on what we are actually building and when it was poured. A cold week stretches the wait, and a wall the plans call for thicker will hold its shape sooner than a thin one would.
What comes off with the forms, and what waits
On flatwork, once the forms come out, the edges get backfilled and the site gets cleaned up. Control joints are already cut by that point, usually within the first day, so the slab's crack pattern is already decided before the forms leave.
On a wall, stripping the forms is only the first step. Tie ends get broken off and patched, and any fins along the form joints get knocked down before the wall is handed to the next trade. Backfilling against a fresh wall too soon, before it has the support it will eventually get from the floor above and the slab below, is its own separate risk and its own separate timing question, and it usually waits longer than the forms themselves do.