Everyone assumes cloud == multi-tenant, but single-tenant cloud has a lot of benefits and is becoming more common: GitLab Dedicated is single-tenant, GitHub is prioritizing and rebuilding "GitHub AE" (their single-tenant cloud offering), and Sourcegraph (of which I am a cofounder) Cloud is single-tenant[1].
For self-hosted products, offering a single-tenant cloud product is much easier than multi-tenant because single-tenant cloud "just" requires automating and managing infrastructure, not completely changing the core application to support multi-tenancy. This also means nobody should be worried about self-hosted being deprecated in favor of a single-tenant cloud product; companies generally find it easy to keep both.
Single-tenant cloud is also a lot more appealing to large customers because the security is (arguably) fundamentally better and scalability is easier to prove (you can just point to scalability on a self-hosted instance, which has the same scaling characteristics).
Expect to see more single-tenant cloud offerings come out for dev tools, especially those that have a big self-hosted offering (like GitLab, GitHub, and Sourcegraph).
[1] https://about.sourcegraph.com/blog/enterprise-cloud
For self-hosted products, offering a single-tenant cloud product is much easier than multi-tenant because single-tenant cloud "just" requires automating and managing infrastructure, not completely changing the core application to support multi-tenancy. This also means nobody should be worried about self-hosted being deprecated in favor of a single-tenant cloud product; companies generally find it easy to keep both.
Single-tenant cloud is also a lot more appealing to large customers because the security is (arguably) fundamentally better and scalability is easier to prove (you can just point to scalability on a self-hosted instance, which has the same scaling characteristics).
Expect to see more single-tenant cloud offerings come out for dev tools, especially those that have a big self-hosted offering (like GitLab, GitHub, and Sourcegraph).
[1] https://about.sourcegraph.com/blog/enterprise-cloud