Wakanda was typically shown as isolationist in the comics. They wanted to maintain their unique way of life and prevent interference from other nations that might seek to take advantage of them.
In the comics, Wakanda was hidden through its advanced technology and isolationist policies. They had powerful force fields and cloaking devices to keep outsiders away.
Bucky has been depicted going to Wakanda in the comics. This usually happens when he's in need of protection or when there's a connection to other events unfolding in that location.
Overall, Wakanda Forever takes inspiration from the comics but also makes its own unique choices. Some aspects are similar, but many elements have been adapted to fit the movie's narrative and style.
Wakanda had both a forcefield and shield in the comics. These defenses were not only powerful but also a symbol of their advanced technological capabilities. They were often shown to repel attacks from various enemies and showcase Wakanda's superiority in technology and strategic planning.