Do you think it would be possible to use through a VPN? (i.e., connect the RPi hosting the Nextbox to ProtonVPN or similar)

[jerabaul29]

At present, if I am traveling away from home, and I want to connect to my Nextbox home, "everybody" (in particular the ISP of the hotel where I am, the authorities of the country where I am traveling, etc) will know that I try to connect to the server of the ISP of my Nextbox: this is where the reverse DNS points to. This possibly leaks quite some information about me. A way around would be to use the Nitrokey proxy, then they only know I ring to Nitrokey - but this has issues of its own, like no end-to-end encryption, and I would like to avoid this.

So, let us say that I do not want my ISP (home or at the location where I am traveling) to know that I host a nextbox / that I do not want the reverse DNS to point to my ISP server / that I want to be able to connect to my nextbox from outside my home without anybody being able to even know that this is what I am doing.

That sounds like something that would be solved by having the RPi hosting the Nextbox instance connected to the internet through a VPN - for example, I use ProtonVPN. If routing through the VPN was possible, my home ISP does not know anything about me hosting a nextbox (they will just see traffic encrypted back and forth to the VPN), and the country that I am traveling to will not know it either (same, they will just see traffic to a VPN). Do you think this would actually work / be usable? Do you see any issues? If so, is it possible to / any advice on how to solve the issues that would arise?