This is quite a rabbit hole you are getting yourself into, but to keep it short and relatively simple, you need to figure out something very important beforehand:
- Do you want a rolling release or a stable distro?
I'm assuming that, you are not yet familiar with these terms, so let's go with the stable distros.
You have a lot of options here, most of them will all be based of Ubuntu, which is based in Debian, so let me drop a few generally good suggestions in no particular order:
- Linux Mint
- MX Linux
- ZorinOS
- PopOS
- Fedora, (This one is not a stable distro, but you should be good with it)
Either of these is a good starting point. If down the road you feel like they stop fitting your needs, start exploring the big three, (Debian, Fedora and Arch Linux).
A VPN is something that, was created to let you remotelly access another network.
Say for example that you want to connect to your LAN from a coffee shop. That's why they were created in the first place.
Now, they were popularized as something else.
The benefits of the nowadays VPNs are mainly privacy and piracy related.
The reasons most people use a VPN are essentially:
Hide your traffic from your ISP. (By doing so, you are allowing your VPN provider to see everything you do while connected. Just like your ISP would, if you weren't)
Hide your real IP behing one of your VPN's server. (Usefull for torrenting and keeping anonymity)
Bypass geolocation restrictions. (e.g Watching U.S Netflix from Europe)
Do note that, if ypu are going to route your traffic through a VPN, you are giving your provider access to your online activities.
Choose your provider wisely!
Choose a VPN with a strict no logs policy, RAM only servers and strong privacy policies. (Open Source if you can).
Reputable names in the VPN world are Mullvad and Proton VPN.
Avoid the traps of budget VPN or highly advertised ones!