Golden pothos (Epipremnum aureum) is one of the few houseplants that genuinely thrives either way, but water and soil aren't interchangeable mid-life — the plant grows a different kind of root for each.
Roots grown in water are adapted to move oxygen differently than roots grown in soil. A cutting rooted in a jar on a windowsill can live in water indefinitely — pothos will do this for years, needing only a fresh top-off and an occasional rinse of the jar. It just grows slower than a soil-grown plant, since water alone doesn't carry much in the way of nutrients.
The trouble comes when moving a plant from one medium to the other. A water-rooted cutting moved into soil can struggle for a couple of weeks while it grows soil-adapted roots, and some of the original water roots die back in the process. It usually survives the transition fine — pothos is forgiving — but expect a stall, not instant growth.
If the goal is more plants, water propagation is the easier way to watch roots develop: cut just below a node, submerge the node, and change the water every several days. Once roots are an inch or two long, it can go straight into soil, or just stay in water permanently.
If the goal is a bigger, faster-growing plant, soil wins — pothos roots access nutrients and oxygen more efficiently in a well-draining potting mix, and growth shows it.