You might want to ask/crosspost on !privacy@lemmy.dbzer0.com or similar communities. They have a vested interest in this stuff.
I do not have personal experience with their paid plan, but I have used Portmaster. Seems comparable to a traditional VPN, and there's a few things to note about Safing, Portmaster, and the SPN:
- Safing donates money to privacyguides.org. Excellent start.
- Supposedly the SPN (Safing Privacy Network) works similarly to Tor, and like Tor, each node doesn't know the originating IP and the destination simultaneously. Access is assigned with a blind, randomly generated token after Portmaster validates that you are allowed to access the SPN
- It's being acquired by IVPN. I don't know much about them, but they have supposedly contributed a lot of good code to Portmaster, and they are recommended by Privacy Guides.
- SPN was audited by Cure53 in 2020.
- No mobile client (yet).