What does it not support? I want to try and figure out if its shortcomings in the ACP/Claude SDK or if it's just features that Zed has yet to support?
I tried it for a bit and it was definitely usable and I got a few features built out, but I eventually moved back to using CC in the terminal. I'm sure they're working on it, though.
Once I got that running on my machine it was also easy (literally a drop-down+ API key) to switch and explore using models on OpenRouter.
It lacks a lot of features, but IMO feels less "busy" than the terminal version, which I like.
Very recently Zed also gained support for parallel sessions, which is nice. In general it's very obvious that a lot of effort goes into improving it, and it gets better with every release.