Setting Up Remote Access with NordVPN

I am a new home owner and new to Home Assistant and looking to setup Remote Access. I have setup Home Assistant on a Raspberry Pi 5.

I currently have a NordVPN subscription but can’t seem to find out how to set it up for using Remote Access. From what it seems i have read, it might not be possible? Just looking for some confirmation of this or pointers in the right direction. The documentation recommends TailScale or ZeroTier One and I was wondering why these?

Apologies in advance if I have strayed from the question guidance.