

You keep telling yourself that.
Sure, there are some specialized anonymity-focused VPN providers that only have a few IP addresses in order to have as many users behind each IP as possible, but that’s definitely not “most public ones”.
Here’s the IP addresses I got from my provider just by reconnecting the VPN three times without even changing my virtual location:

It’s weird how eagerly people speaking completely out of their asses tend to double down when called out. Even if that would have been true, your original claim still would not work at all.

Well, the client code is liensed GPL 3.0 and server code is licensed AGPL 3.0, and those are both FOSS licenses. There are some additional commercial components licensed under a non-FOSS source-available license, but those are not required for the basic service. I guess you can’t use the Bitwarden trademark either. I would still consider Bitwarden FOSS, although with a slightly limited (but not crippling) scope of the term “Bitwarden”.