Create your layer of security with vpn on a raspberry.
start with the basics:
https://www.sans.org/reading-room/whitepapers/hsoffice/soho-remote-access-vpn-easy-pie-raspberry-pi-34427
And when done playing with that use Wireguard
https://www.reddit.com/r/pihole/comments/bnihyz/guide_how_to_install_wireguard_on_a_raspberry_pi/
Or look for Online VPN PAID products like GOOSE VPN or MULVAD.
If you don’t pay you will be the product with free products
or try https://protonvpn.com/pricing
Do I need a VPN?
https://mashable.com/article/why-you-need-vpn/