Whatever you use, get decent plasterboard fixings. For heavy duty use the drop toggle style or self drilling inserts are probably the best way to go. https://www.screwfix.com/p/easyfix-self-drill-plasterboard-fixings-metal-32mm-100-pack/2422h https://www.screwfix.com/p/easyfix-spring-toggles-5-x-50mm-20-pack/4257x
Then the world is your crustacean!
Update of my gridwall:
That's mounted to a particularly shitty breezeblock wall by the way.