Happen to know something about gabions, pleased to share some information on the use of gabion baskets:
As far as I know, metal mesh gabions with zinc alumium coating protection can be used for over 80 years or even longer. This finish is also known as Galfan coating technically. In this kind of treatment, aluminum is added to the zinc galvanising process for increased corrosion protection compared with traditional pure zinc coating or common galvanizing. Further PVC coating on the wire provides additional corrosion protection for the gabions and further extends its service life.
The point is that the wire quality must be guaranteed to meet the various standards setting internationally, for example, tensile strength of the wire shall be between 380 - 550 N/mm2, also other requirements for elongation, coating standards, etc.
Using mesh gabions holding stones in construction is more environmental friendly than concrete pouring, I think, because it uses natural stone and plants can grow with it.
More information about how gabions is used, you may refer to: https://gabionbasket.org/gabions/information/gabion-system-solutions.html
Use gabions in engineering projects