Webflow+Ghost: Technical SEO question

Hey everyone,

So we use web flow + ghost for website and blog. Our current domain structure is as follows:

Inkrement is nginx , and has the following proxies:
Inkrement.io proxies to webflow.inkrement.io

Inkrement.io/blog proxies to something like test.inkrement.io where we have VM hosting our ghost instance.

The reason we did it this way because we wanted blog to be on sub directory and i had heard it was th best way for SEO .

I submitted the two site maps to GSC and all the URLs are found and indexable.

Given how complex our setup is, I just wanted to make sure with y’all whether you see anything wrong here. My biggest worry is making sure google knows that the two sub domains are part of the same root.

If there is a better way to set up, would love to hear your thoughts.

Thanks!

P.s.

Site maps:
https://inkrement.io/sitemap.xml
https://inkrement.io/blog/sitemap.xml

Cc. @saifabid