I’m not sure gVisor was incepted because Isolates didn’t provide strong enough isolation - wasn’t it because Google was looking for a way to provide stronger is

I’m not sure gVisor was incepted because Isolates didn’t provide strong enough isolation - wasn’t it because Google was looking for a way to provide stronger isolation for containers (i.e. not V8-only) without the overhead of traditional virtualization? That is, totally different use case... going with V8-only in return for some better non-functional metrics is a trade off Cloudflare made for a serverless platform, but not one that Google (or anyone else, probably) would make for a container-based platform?