I would much prefer Proton just integrate Privacy.com instead of building their own service for it. For one, I already have tons of cards that I need to keep from Privacy.com, also Privacy.com has a ton of financial stuff they had to do to make it a reality, and I'm not sure Proton is equipped for that kind of work. Privacy.com works well, lets just work with their service, and allow cards to be tied to specific logins in your vault.
I would much prefer Proton just integrate Privacy.com instead of building their own service for it. For one, I already have tons of cards that I need to keep from Privacy.com, also Privacy.com has a ton of financial stuff they had to do to make it a reality, and I'm not sure Proton is equipped for that kind of work. Privacy.com works well, lets just work with their service, and allow cards to be tied to specific logins in your vault.