Yup. You can run both local amd external services off the same proxy, at least with traefik and I assume others. Alternatively you could use traefik to solely for local services and Cloudflare zero trust tunnel for external.
I think his traefik video covers it? If not, it covers some part.
The other part is that you need pihole setup to serve local DNS.
For fuck sakes. Not everything has to do with capitalism. Puritanical belief exists long before capitalism, communism or whatever economic system you want to paint as the boogyman. And it will exist long after.
What are the ethical reasons to not use it?