Hi,
I am not 100% certain, but as long as you are not using 3rd party cookies to store session information then I think Shopify doesn’t care what exact method you use as long as its using some sort of session token. If you have a server-side rendered app and want to embed it then the app-bridge in conjunction with turbo-links is going to be the path of least resistance.
If you are using React then honestly I also see no reason not to use all the tools that Shopify provides to make your life easier 
after all the getSessionToken method gets a short lived JWT token.
Give it a try and see what they say.
Cheers