Hi @alve39,
OK, I think the best place to start is exporting to Netlify, at least for testing that you can get a clean export, then use whichever method you like for production hosting.
You can follow this guide here, using the ZIP method to deploy manually to Netlify:
https://wp2static.com/docs/getting-started/doing-a-test-export/
Once you see a clean export running there, you will have confidence to deploy it to other places (some of which may require some fiddling).
Basically, domain to domain can be easier than domain to domain/subdirectory, as it’s easier to rewrite links in the same pattern than at different levels. It’s possible, but let’s start with the easiest method first, then build up from there.
If you encounter any other issues in doing your first site export, please let me know.
Cheers,
Leon