It misses the most important information: why.
The CNIL (French privacy regulator) slapped Discord in October last year because they never deleted accounts (hi GDPR).
Since then, all tech companies are hurriedly designing a plan to mass delete inactive accounts.
You know that NAS can go in sleep mode, right? And wake up only when you try to activate them.
But what is the use-case? Only make your holiday films available to a media center? Or do you plan to also use it as a storage for other devices?
In the first case a sbc can do the trick (however can struggle if you share 4k). But I would definitely look into “real” NAS (Synology, qnas, etc.) before using a sbc.
I don’t expose my dns, because I don’t bother. I’m using Android phone, so I accept my phone is not private.
But a VPN could be a solution to get in touch with your dns.
Best advice. Set your own dns resolver, it’s easy.
It’s rather the other way around, Word is not 1 to 1 compatible with LibreOffice Writer when it comes to document editing. Writer is far better on that aspect.