This looks to me like the issue is that Zed is using too many buffer objects, it should be querying the Vulkan context to see what's the max and sticking to it. So it seems like Zed's not doing it right, or maybe the AMD driver is failing to report it correctly?

It is a problem though, the GPU apis are pretty terrible. But with such large modern displays it feels important to have a GPU accelerated path. Maybe sticking with OpenGL would be better.