DynDNS? I’m not 100% sure what CF Tunnel does, but from my 2 min reading it seems that DynDNS would accomplish what OP described just as well.

Nope

You can send a formal letter requesting that all your data be deleted, stating that you can’t log in and do not agree with their ToS. Theoretically they have to do it. Good luck.

Time to get a Brentrace, I guess.

While I agree with you these practices do bring prices down for consumers. I just have the TV off internet and use an AppleTV.

GDPR would like to have a word here. Most likely not done in the EU though.

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There is a de-bloated version of Windows that does not have all the telemetry data, they call it ReviOS for whatever reason. If you install this, you are as private as it get in Windows.

https://ameliorated.io/

If you want to learn about this before installing anything, check this video: https://youtu.be/nwkiU6GG-YU?si=J8FdNEUMly1p8pPy

This is likely what you are looking for

https://ameliorated.io/

ReviOS is what I use in my VMs.

Doors

Probably not what you are looking for but my wife uses a book and a private teacher that charges 30€ for 90 minutes so… look online?

Use that shit as a modem and get another device for your internals.

I’m not a big fan of putting all your eggs in one basket. If for whatever reason your Apple account gets compromised, you’re utterly fucked lol.