If you are looking at this, you mayhaps be interesting in getting around network blocks on your device?
If you are simply looking for a Prox(y) setup, this isn't for that;
Make a Proton account
A good website to make a burner email for this is
mail.com(they don't verify info).
Or you can make your own Proton email and use that here instead.
Scroll to the bottom and press Import ONC, then upload the onc file
Delete the file and then go to your quick access settings (click the clock)
Click VPN, and then the name you selected
Depending on how used to account is, or how ratedlimited it is. It should a couple seconds. If it dosen't connect right away, try again or wait until later.
You need another hostname or port to change your file's region, these are listed here
Manual
Or you can get this hostname from a .ovpn file.
on the IKEv2 page. Download a file from a region you want to emulate.
For example;
Once downloading it,
Drag it from the ChromeOS files app into the browser, it should now open in browser
Somewhere in the file you should see numbers in this format ##.##.###.###
Changing in file creator
Those numbers are your new hostname to put in the file creator.