Manually complete hydration of ssr components in a single SPA instance

[NovaAstra]

In a single SPA instance (such as vue or react), split a single large component and use SSR to return an component HTML string. How to complete the hydration in this SPA instance? I noticed that both vue and react have corresponding APIs, but they seem to need to recreate the SSRAPP instance. I want to know if there is a way to activate the component in the existing instance